fleat: add statistics

customers_stats.php

@@ -0,0 +1,150 @@
+<?php
+/**
+ * 客户统计分析展示页面
+ */
+require_once 'conn.php';
+require_once 'statistics_utils.php';
+require_once 'statistics_customers.php';
+
+// 检查登录状态
+if (!isset($_SESSION['employee_id'])) {
+    checkLogin();
+}
+
+// 获取日期范围参数
+$date_params = getDateRangeParams();
+$start_date = $date_params['start_date_sql'];
+$end_date = $date_params['end_date_sql'];
+$date_range = $date_params['date_range'];
+$period = $date_params['period'];
+
+// 页面头部
+include('header.php');
+?>
+
+<div class="container-fluid px-4">
+    <h1 class="mt-4">客户统计分析</h1>
+    <ol class="breadcrumb mb-4">
+        <li class="breadcrumb-item"><a href="index.php">控制台</a></li>
+        <li class="breadcrumb-item active">客户统计</li>
+    </ol>
+    
+    <!-- 日期筛选 -->
+    <div class="card mb-4">
+        <div class="card-header">
+            <i class="fas fa-filter me-1"></i>
+            日期范围筛选
+        </div>
+        <div class="card-body">
+            <form method="get" class="row g-3">
+                <div class="col-md-3">
+                    <label for="date_range" class="form-label">选择日期范围</label>
+                    <select class="form-select" id="date_range" name="date_range" onchange="toggleCustomDates()">
+                        <option value="current_month" <?php echo $date_range == 'current_month' ? 'selected' : ''; ?>>本月</option>
+                        <option value="last_month" <?php echo $date_range == 'last_month' ? 'selected' : ''; ?>>上月</option>
+                        <option value="current_year" <?php echo $date_range == 'current_year' ? 'selected' : ''; ?>>今年</option>
+                        <option value="last_30_days" <?php echo $date_range == 'last_30_days' ? 'selected' : ''; ?>>最近30天</option>
+                        <option value="last_90_days" <?php echo $date_range == 'last_90_days' ? 'selected' : ''; ?>>最近90天</option>
+                        <option value="custom" <?php echo $date_range == 'custom' ? 'selected' : ''; ?>>自定义日期范围</option>
+                    </select>
+                </div>
+                <div class="col-md-3 custom-date" style="display: <?php echo $date_range == 'custom' ? 'block' : 'none'; ?>">
+                    <label for="start_date" class="form-label">开始日期</label>
+                    <input type="date" class="form-control" id="start_date" name="start_date" value="<?php echo $date_params['custom_start']; ?>">
+                </div>
+                <div class="col-md-3 custom-date" style="display: <?php echo $date_range == 'custom' ? 'block' : 'none'; ?>">
+                    <label for="end_date" class="form-label">结束日期</label>
+                    <input type="date" class="form-control" id="end_date" name="end_date" value="<?php echo $date_params['custom_end']; ?>">
+                </div>
+                <div class="col-md-2 d-flex align-items-end">
+                    <button type="submit" class="btn btn-primary">应用筛选</button>
+                </div>
+            </form>
+        </div>
+    </div>
+    
+    <div class="row">
+        <!-- 客户类型分布 -->
+        <div class="col-lg-6 mb-4">
+            <div class="card">
+                <?php
+                $customer_type_result = getCustomerTypeDistribution($conn);
+                $type_labels = [];
+                $type_data = [];
+                
+                while ($row = $customer_type_result->fetch_assoc()) {
+                    $type_labels[] = $row['businessType'];
+                    $type_data[] = $row['customer_count'];
+                }
+                renderCustomerTypeChart($type_labels, $type_data);
+                ?>
+            </div>
+        </div>
+        
+        <!-- 成交阶段分布 -->
+        <div class="col-lg-6 mb-4">
+            <div class="card">
+                <?php
+                $deal_stage_result = getDealStageDistribution($conn);
+                $stage_labels = [];
+                $stage_data = [];
+                
+                while ($row = $deal_stage_result->fetch_assoc()) {
+                    $stage_labels[] = $row['stage_name'];
+                    $stage_data[] = $row['customer_count'];
+                }
+                renderDealStageChart($stage_labels, $stage_data);
+                ?>
+            </div>
+        </div>
+    </div>
+    
+    <div class="row">
+        <!-- 客户增长趋势 -->
+        <div class="col-lg-12 mb-4">
+            <div class="card">
+                <?php
+                $growth_result = getCustomerGrowthTrend($conn);
+                $growth_labels = [];
+                $growth_data = [];
+                
+                while ($row = $growth_result->fetch_assoc()) {
+                    $growth_labels[] = $row['month'];
+                    $growth_data[] = $row['new_customers'];
+                }
+                renderCustomerGrowthChart($growth_labels, $growth_data);
+                ?>
+            </div>
+        </div>
+    </div>
+    
+    <div class="row">
+        <!-- 新老客户分析 -->
+        <div class="col-lg-12 mb-4">
+            <div class="card">
+                <?php
+                $new_vs_returning = getNewVsReturningCustomerOrders($conn, $start_date, $end_date);
+                renderNewVsReturningCustomersChart($new_vs_returning);
+                ?>
+            </div>
+        </div>
+    </div>
+</div>
+
+<script>
+function toggleCustomDates() {
+    const dateRange = document.getElementById('date_range').value;
+    const customDates = document.querySelectorAll('.custom-date');
+    
+    if (dateRange === 'custom') {
+        customDates.forEach(el => el.style.display = 'block');
+    } else {
+        customDates.forEach(el => el.style.display = 'none');
+    }
+}
+</script>
+
+<?php
+// 页面底部
+include('footer.php');
+?> 

export_statistics.php

@@ -0,0 +1,303 @@
+<?php
+require_once 'conn.php';
+checkLogin();
+
+// 处理日期范围
+$date_range = isset($_GET['date_range']) ? $_GET['date_range'] : 'current_month';
+$custom_start = isset($_GET['start_date']) ? $_GET['start_date'] : '';
+$custom_end = isset($_GET['end_date']) ? $_GET['end_date'] : '';
+$period = isset($_GET['period']) ? $_GET['period'] : 'day';
+
+// 计算日期范围
+$current_month_start = date('Y-m-01');
+$current_month_end = date('Y-m-t');
+$last_month_start = date('Y-m-01', strtotime('-1 month'));
+$last_month_end = date('Y-m-t', strtotime('-1 month'));
+$current_year_start = date('Y-01-01');
+$current_year_end = date('Y-12-31');
+
+// 设置日期范围
+if ($date_range == 'custom' && !empty($custom_start) && !empty($custom_end)) {
+    $start_date = $custom_start;
+    $end_date = $custom_end;
+} else {
+    switch ($date_range) {
+        case 'last_month':
+            $start_date = $last_month_start;
+            $end_date = $last_month_end;
+            break;
+        case 'current_year':
+            $start_date = $current_year_start;
+            $end_date = $current_year_end;
+            break;
+        case 'last_30_days':
+            $start_date = date('Y-m-d', strtotime('-30 days'));
+            $end_date = date('Y-m-d');
+            break;
+        case 'last_90_days':
+            $start_date = date('Y-m-d', strtotime('-90 days'));
+            $end_date = date('Y-m-d');
+            break;
+        case 'current_month':
+        default:
+            $start_date = $current_month_start;
+            $end_date = $current_month_end;
+            break;
+    }
+}
+
+// 格式化日期用于SQL查询
+$start_date_sql = date('Y-m-d', strtotime($start_date));
+$end_date_sql = date('Y-m-d', strtotime($end_date)) . ' 23:59:59';
+
+// 准备导出数据
+$data = [];
+
+// 1. 销售概览
+$sql = "SELECT 
+            COUNT(id) as total_orders,
+            SUM(total_amount) as total_revenue,
+            AVG(total_amount) as avg_order_value
+        FROM orders 
+        WHERE order_date BETWEEN ? AND ?";
+
+$stmt = $conn->prepare($sql);
+$stmt->bind_param("ss", $start_date_sql, $end_date_sql);
+$stmt->execute();
+$result = $stmt->get_result();
+$overview = $result->fetch_assoc();
+
+$data['overview'] = [
+    ['项目', '数值'],
+    ['总订单数', $overview['total_orders']],
+    ['总收入', $overview['total_revenue']],
+    ['平均订单金额', $overview['avg_order_value']]
+];
+
+// 2. 地区订单分析
+$sql = "SELECT 
+            c.countryName, 
+            COUNT(o.id) as order_count,
+            SUM(o.total_amount) as total_amount,
+            SUM(oi.quantity) as total_quantity
+        FROM orders o
+        JOIN customer cu ON o.customer_id = cu.id
+        JOIN country c ON cu.cs_country = c.id
+        LEFT JOIN order_items oi ON o.id = oi.order_id
+        WHERE o.order_date BETWEEN ? AND ?
+        GROUP BY cu.cs_country
+        ORDER BY total_quantity DESC";
+
+$stmt = $conn->prepare($sql);
+$stmt->bind_param("ss", $start_date_sql, $end_date_sql);
+$stmt->execute();
+$result = $stmt->get_result();
+
+$data['region_orders'] = [['国家/地区', '订单数量', '总金额', '产品数量']];
+while ($row = $result->fetch_assoc()) {
+    $data['region_orders'][] = [
+        $row['countryName'],
+        $row['order_count'],
+        $row['total_amount'],
+        $row['total_quantity']
+    ];
+}
+
+// 3. 详细时间段订单趋势
+$groupFormat = '%Y-%m-%d';
+$intervalUnit = 'DAY';
+
+if ($period == 'week') {
+    $groupFormat = '%x-W%v'; // ISO year and week number
+    $intervalUnit = 'WEEK';
+} else if ($period == 'month') {
+    $groupFormat = '%Y-%m';
+    $intervalUnit = 'MONTH';
+}
+
+$sql = "SELECT 
+            DATE_FORMAT(o.order_date, '$groupFormat') as time_period,
+            COUNT(o.id) as order_count,
+            SUM(oi.quantity) as total_quantity,
+            SUM(o.total_amount) as total_amount
+        FROM orders o
+        LEFT JOIN order_items oi ON o.id = oi.order_id
+        WHERE o.order_date BETWEEN ? AND ?
+        GROUP BY time_period
+        ORDER BY MIN(o.order_date)";
+
+$stmt = $conn->prepare($sql);
+$stmt->bind_param("ss", $start_date_sql, $end_date_sql);
+$stmt->execute();
+$result = $stmt->get_result();
+
+$data['time_trend'] = [['时间段', '订单数量', '产品数量', '销售金额']];
+while ($row = $result->fetch_assoc()) {
+    $data['time_trend'][] = [
+        $row['time_period'],
+        $row['order_count'],
+        $row['total_quantity'],
+        $row['total_amount']
+    ];
+}
+
+// 4. 热门产品
+$sql = "SELECT 
+            p.ProductName, 
+            SUM(oi.quantity) as total_quantity,
+            SUM(oi.total_price) as total_revenue
+        FROM order_items oi
+        JOIN products p ON oi.product_id = p.id
+        JOIN orders o ON oi.order_id = o.id
+        WHERE o.order_date BETWEEN ? AND ?
+        GROUP BY oi.product_id
+        ORDER BY total_revenue DESC
+        LIMIT 20";
+
+$stmt = $conn->prepare($sql);
+$stmt->bind_param("ss", $start_date_sql, $end_date_sql);
+$stmt->execute();
+$result = $stmt->get_result();
+
+$data['top_products'] = [['产品名称', '销售数量', '销售收入']];
+while ($row = $result->fetch_assoc()) {
+    $data['top_products'][] = [
+        $row['ProductName'],
+        $row['total_quantity'],
+        $row['total_revenue']
+    ];
+}
+
+// 5. 业务员销售业绩
+$sql = "SELECT 
+            e.em_user as employee_name,
+            COUNT(o.id) as order_count,
+            SUM(o.total_amount) as total_sales,
+            AVG(o.total_amount) as avg_order_value
+        FROM orders o
+        JOIN employee e ON o.employee_id = e.id
+        WHERE o.order_date BETWEEN ? AND ?
+        GROUP BY o.employee_id
+        ORDER BY total_sales DESC";
+
+$stmt = $conn->prepare($sql);
+$stmt->bind_param("ss", $start_date_sql, $end_date_sql);
+$stmt->execute();
+$result = $stmt->get_result();
+
+$data['employee_performance'] = [['业务员', '订单数量', '销售总额', '平均订单金额']];
+while ($row = $result->fetch_assoc()) {
+    $data['employee_performance'][] = [
+        $row['employee_name'],
+        $row['order_count'],
+        $row['total_sales'],
+        $row['avg_order_value']
+    ];
+}
+
+// 设置适当的响应头，用于Excel导出
+header('Content-Type: application/vnd.ms-excel');
+header('Content-Disposition: attachment;filename="CRM统计分析_' . date('Y-m-d') . '.xls"');
+header('Cache-Control: max-age=0');
+?>
+<!DOCTYPE html>
+<html>
+<head>
+    <meta charset="UTF-8">
+    <style>
+        table {
+            border-collapse: collapse;
+            width: 100%;
+            margin-bottom: 20px;
+        }
+        th, td {
+            border: 1px solid #ddd;
+            padding: 8px;
+            text-align: left;
+        }
+        th {
+            background-color: #f2f2f2;
+            font-weight: bold;
+        }
+        h2 {
+            margin-top: 30px;
+            margin-bottom: 10px;
+        }
+    </style>
+</head>
+<body>
+    <h1>CRM统计分析报告</h1>
+    <p>日期范围: <?php echo $start_date; ?> 至 <?php echo $end_date; ?></p>
+    
+    <h2>1. 销售概览</h2>
+    <table>
+        <?php foreach ($data['overview'] as $row): ?>
+        <tr>
+            <?php foreach ($row as $cell): ?>
+            <td><?php echo $cell; ?></td>
+            <?php endforeach; ?>
+        </tr>
+        <?php endforeach; ?>
+    </table>
+    
+    <h2>2. 地区订单分析</h2>
+    <table>
+        <?php foreach ($data['region_orders'] as $index => $row): ?>
+        <tr>
+            <?php foreach ($row as $cell): ?>
+            <?php if ($index === 0): ?>
+            <th><?php echo $cell; ?></th>
+            <?php else: ?>
+            <td><?php echo $cell; ?></td>
+            <?php endif; ?>
+            <?php endforeach; ?>
+        </tr>
+        <?php endforeach; ?>
+    </table>
+    
+    <h2>3. <?php echo $period == 'day' ? '每日' : ($period == 'week' ? '每周' : '每月'); ?>订单趋势</h2>
+    <table>
+        <?php foreach ($data['time_trend'] as $index => $row): ?>
+        <tr>
+            <?php foreach ($row as $cell): ?>
+            <?php if ($index === 0): ?>
+            <th><?php echo $cell; ?></th>
+            <?php else: ?>
+            <td><?php echo $cell; ?></td>
+            <?php endif; ?>
+            <?php endforeach; ?>
+        </tr>
+        <?php endforeach; ?>
+    </table>
+    
+    <h2>4. 热门产品</h2>
+    <table>
+        <?php foreach ($data['top_products'] as $index => $row): ?>
+        <tr>
+            <?php foreach ($row as $cell): ?>
+            <?php if ($index === 0): ?>
+            <th><?php echo $cell; ?></th>
+            <?php else: ?>
+            <td><?php echo $cell; ?></td>
+            <?php endif; ?>
+            <?php endforeach; ?>
+        </tr>
+        <?php endforeach; ?>
+    </table>
+    
+    <h2>5. 业务员销售业绩</h2>
+    <table>
+        <?php foreach ($data['employee_performance'] as $index => $row): ?>
+        <tr>
+            <?php foreach ($row as $cell): ?>
+            <?php if ($index === 0): ?>
+            <th><?php echo $cell; ?></th>
+            <?php else: ?>
+            <td><?php echo $cell; ?></td>
+            <?php endif; ?>
+            <?php endforeach; ?>
+        </tr>
+        <?php endforeach; ?>
+    </table>
+</body>
+</html> 

products_stats.php

@@ -0,0 +1,162 @@
+<?php
+/**
+ * 产品统计分析展示页面
+ */
+require_once 'conn.php';
+require_once 'statistics_utils.php';
+require_once 'statistics_products.php';
+
+// 检查登录状态
+if (!isset($_SESSION['employee_id'])) {
+    checkLogin();
+}
+
+// 获取日期范围参数
+$date_params = getDateRangeParams();
+$start_date = $date_params['start_date_sql'];
+$end_date = $date_params['end_date_sql'];
+$date_range = $date_params['date_range'];
+$period = $date_params['period'];
+
+// 特定产品过滤
+$product_id = isset($_GET['product_id']) ? intval($_GET['product_id']) : 0;
+
+// 页面头部
+include('header.php');
+?>
+
+<div class="container-fluid px-4">
+    <h1 class="mt-4">产品统计分析</h1>
+    <ol class="breadcrumb mb-4">
+        <li class="breadcrumb-item"><a href="index.php">控制台</a></li>
+        <li class="breadcrumb-item active">产品统计</li>
+    </ol>
+    
+    <!-- 日期筛选 -->
+    <div class="card mb-4">
+        <div class="card-header">
+            <i class="fas fa-filter me-1"></i>
+            日期范围筛选
+        </div>
+        <div class="card-body">
+            <form method="get" class="row g-3">
+                <div class="col-md-3">
+                    <label for="date_range" class="form-label">选择日期范围</label>
+                    <select class="form-select" id="date_range" name="date_range" onchange="toggleCustomDates()">
+                        <option value="current_month" <?php echo $date_range == 'current_month' ? 'selected' : ''; ?>>本月</option>
+                        <option value="last_month" <?php echo $date_range == 'last_month' ? 'selected' : ''; ?>>上月</option>
+                        <option value="current_year" <?php echo $date_range == 'current_year' ? 'selected' : ''; ?>>今年</option>
+                        <option value="last_30_days" <?php echo $date_range == 'last_30_days' ? 'selected' : ''; ?>>最近30天</option>
+                        <option value="last_90_days" <?php echo $date_range == 'last_90_days' ? 'selected' : ''; ?>>最近90天</option>
+                        <option value="custom" <?php echo $date_range == 'custom' ? 'selected' : ''; ?>>自定义日期范围</option>
+                    </select>
+                </div>
+                <div class="col-md-2 custom-date" style="display: <?php echo $date_range == 'custom' ? 'block' : 'none'; ?>">
+                    <label for="start_date" class="form-label">开始日期</label>
+                    <input type="date" class="form-control" id="start_date" name="start_date" value="<?php echo $date_params['custom_start']; ?>">
+                </div>
+                <div class="col-md-2 custom-date" style="display: <?php echo $date_range == 'custom' ? 'block' : 'none'; ?>">
+                    <label for="end_date" class="form-label">结束日期</label>
+                    <input type="date" class="form-control" id="end_date" name="end_date" value="<?php echo $date_params['custom_end']; ?>">
+                </div>
+                <div class="col-md-3">
+                    <label for="period" class="form-label">时间粒度</label>
+                    <select class="form-select" id="period" name="period">
+                        <option value="day" <?php echo $period == 'day' ? 'selected' : ''; ?>>日</option>
+                        <option value="week" <?php echo $period == 'week' ? 'selected' : ''; ?>>周</option>
+                        <option value="month" <?php echo $period == 'month' ? 'selected' : ''; ?>>月</option>
+                    </select>
+                </div>
+                <div class="col-md-2 d-flex align-items-end">
+                    <button type="submit" class="btn btn-primary">应用筛选</button>
+                </div>
+            </form>
+        </div>
+    </div>
+    
+    <div class="row">
+        <!-- 热门产品 -->
+        <div class="col-lg-12 mb-4">
+            <div class="card">
+                <?php
+                $top_products = getTopProducts($conn, $start_date, $end_date, 10);
+                renderTopProductsTable($top_products);
+                ?>
+            </div>
+        </div>
+    </div>
+    
+    <div class="row">
+        <!-- 产品销售趋势 -->
+        <div class="col-lg-12 mb-4">
+            <div class="card">
+                <?php
+                $product_trends = getProductSalesTrend($conn, $start_date, $end_date, $product_id, $period);
+                
+                $time_labels = [];
+                $quantities = [];
+                $revenues = [];
+                
+                while ($row = $product_trends->fetch_assoc()) {
+                    $time_labels[] = $row['time_period'];
+                    $quantities[] = $row['total_quantity'];
+                    $revenues[] = $row['total_revenue'];
+                }
+                renderProductSalesTrendChart($time_labels, $quantities, $revenues);
+                ?>
+            </div>
+        </div>
+    </div>
+    
+    <div class="row">
+        <!-- 产品类别销售分布 -->
+        <div class="col-lg-12 mb-4">
+            <div class="card">
+                <?php
+                $category_sales = getProductCategorySales($conn, $start_date, $end_date);
+                
+                $categories = [];
+                $category_quantities = [];
+                $category_revenues = [];
+                
+                while ($row = $category_sales->fetch_assoc()) {
+                    $categories[] = $row['category_name'];
+                    $category_quantities[] = $row['total_quantity'];
+                    $category_revenues[] = $row['total_revenue'];
+                }
+                renderProductCategorySalesChart($categories, $category_quantities, $category_revenues);
+                ?>
+            </div>
+        </div>
+    </div>
+    
+    <div class="row">
+        <!-- 产品地区关联分析 -->
+        <div class="col-lg-12 mb-4">
+            <div class="card">
+                <?php
+                $product_region_data = getProductRegionAnalysis($conn, $start_date, $end_date);
+                renderProductRegionAnalysisTable($product_region_data);
+                ?>
+            </div>
+        </div>
+    </div>
+</div>
+
+<script>
+function toggleCustomDates() {
+    const dateRange = document.getElementById('date_range').value;
+    const customDates = document.querySelectorAll('.custom-date');
+    
+    if (dateRange === 'custom') {
+        customDates.forEach(el => el.style.display = 'block');
+    } else {
+        customDates.forEach(el => el.style.display = 'none');
+    }
+}
+</script>
+
+<?php
+// 页面底部
+include('footer.php');
+?> 

region_stats.php

@@ -0,0 +1,145 @@
+<?php
+/**
+ * 地区统计分析展示页面
+ */
+require_once 'conn.php';
+require_once 'statistics_utils.php';
+require_once 'statistics_region.php';
+
+// 检查登录状态
+if (!isset($_SESSION['employee_id'])) {
+    checkLogin();
+}
+
+// 获取日期范围参数
+$date_params = getDateRangeParams();
+$start_date = $date_params['start_date_sql'];
+$end_date = $date_params['end_date_sql'];
+$date_range = $date_params['date_range'];
+
+// 页面头部
+include('header.php');
+?>
+
+<div class="container-fluid px-4">
+    <h1 class="mt-4">地区统计分析</h1>
+    <ol class="breadcrumb mb-4">
+        <li class="breadcrumb-item"><a href="index.php">控制台</a></li>
+        <li class="breadcrumb-item active">地区统计</li>
+    </ol>
+    
+    <!-- 日期筛选 -->
+    <div class="card mb-4">
+        <div class="card-header">
+            <i class="fas fa-filter me-1"></i>
+            日期范围筛选
+        </div>
+        <div class="card-body">
+            <form method="get" class="row g-3">
+                <div class="col-md-3">
+                    <label for="date_range" class="form-label">选择日期范围</label>
+                    <select class="form-select" id="date_range" name="date_range" onchange="toggleCustomDates()">
+                        <option value="current_month" <?php echo $date_range == 'current_month' ? 'selected' : ''; ?>>本月</option>
+                        <option value="last_month" <?php echo $date_range == 'last_month' ? 'selected' : ''; ?>>上月</option>
+                        <option value="current_year" <?php echo $date_range == 'current_year' ? 'selected' : ''; ?>>今年</option>
+                        <option value="last_30_days" <?php echo $date_range == 'last_30_days' ? 'selected' : ''; ?>>最近30天</option>
+                        <option value="last_90_days" <?php echo $date_range == 'last_90_days' ? 'selected' : ''; ?>>最近90天</option>
+                        <option value="custom" <?php echo $date_range == 'custom' ? 'selected' : ''; ?>>自定义日期范围</option>
+                    </select>
+                </div>
+                <div class="col-md-3 custom-date" style="display: <?php echo $date_range == 'custom' ? 'block' : 'none'; ?>">
+                    <label for="start_date" class="form-label">开始日期</label>
+                    <input type="date" class="form-control" id="start_date" name="start_date" value="<?php echo $date_params['custom_start']; ?>">
+                </div>
+                <div class="col-md-3 custom-date" style="display: <?php echo $date_range == 'custom' ? 'block' : 'none'; ?>">
+                    <label for="end_date" class="form-label">结束日期</label>
+                    <input type="date" class="form-control" id="end_date" name="end_date" value="<?php echo $date_params['custom_end']; ?>">
+                </div>
+                <div class="col-md-2 d-flex align-items-end">
+                    <button type="submit" class="btn btn-primary">应用筛选</button>
+                </div>
+            </form>
+        </div>
+    </div>
+    
+    <div class="row">
+        <!-- 客户国家分布 -->
+        <div class="col-lg-12 mb-4">
+            <div class="card">
+                <?php
+                $country_distribution = getCustomerCountryDistribution($conn);
+                $country_labels = [];
+                $country_data = [];
+                
+                while ($row = $country_distribution->fetch_assoc()) {
+                    $country_labels[] = $row['countryName'];
+                    $country_data[] = $row['customer_count'];
+                }
+                renderCustomerCountryDistributionChart($country_labels, $country_data);
+                ?>
+            </div>
+        </div>
+    </div>
+    
+    <div class="row">
+        <!-- 地区订单分析 -->
+        <div class="col-lg-12 mb-4">
+            <div class="card">
+                <?php
+                $region_orders = getOrdersByRegion($conn, $start_date, $end_date);
+                $region_labels = [];
+                $region_order_counts = [];
+                $region_quantities = [];
+                
+                while ($row = $region_orders->fetch_assoc()) {
+                    $region_labels[] = $row['countryName'];
+                    $region_order_counts[] = $row['order_count'];
+                    $region_quantities[] = $row['total_quantity'];
+                }
+                renderRegionOrdersChart($region_labels, $region_order_counts, $region_quantities);
+                ?>
+            </div>
+        </div>
+    </div>
+    
+    <div class="row">
+        <!-- 地区销售同比分析 -->
+        <div class="col-lg-12 mb-4">
+            <div class="card">
+                <?php
+                $comparison_data = getRegionSalesComparison($conn, $start_date, $end_date);
+                renderRegionSalesComparisonTable($comparison_data);
+                ?>
+            </div>
+        </div>
+    </div>
+</div>
+
+<style>
+    .positive {
+        color: #28a745;
+        font-weight: bold;
+    }
+    .negative {
+        color: #dc3545;
+        font-weight: bold;
+    }
+</style>
+
+<script>
+function toggleCustomDates() {
+    const dateRange = document.getElementById('date_range').value;
+    const customDates = document.querySelectorAll('.custom-date');
+    
+    if (dateRange === 'custom') {
+        customDates.forEach(el => el.style.display = 'block');
+    } else {
+        customDates.forEach(el => el.style.display = 'none');
+    }
+}
+</script>
+
+<?php
+// 页面底部
+include('footer.php');
+?> 

sales_stats.php

@@ -0,0 +1,177 @@
+<?php
+/**
+ * 销售统计分析展示页面
+ */
+require_once 'conn.php';
+require_once 'statistics_utils.php';
+require_once 'statistics_sales.php';
+
+// 检查登录状态
+if (!isset($_SESSION['employee_id'])) {
+    checkLogin();
+}
+
+// 获取日期范围参数
+$date_params = getDateRangeParams();
+$start_date = $date_params['start_date_sql'];
+$end_date = $date_params['end_date_sql'];
+$date_range = $date_params['date_range'];
+$period = $date_params['period'];
+
+// 页面头部
+include('header.php');
+?>
+
+<div class="container-fluid px-4">
+    <h1 class="mt-4">销售统计分析</h1>
+    <ol class="breadcrumb mb-4">
+        <li class="breadcrumb-item"><a href="index.php">控制台</a></li>
+        <li class="breadcrumb-item active">销售统计</li>
+    </ol>
+    
+    <!-- 日期筛选 -->
+    <div class="card mb-4">
+        <div class="card-header">
+            <i class="fas fa-filter me-1"></i>
+            日期范围筛选
+        </div>
+        <div class="card-body">
+            <form method="get" class="row g-3">
+                <div class="col-md-3">
+                    <label for="date_range" class="form-label">选择日期范围</label>
+                    <select class="form-select" id="date_range" name="date_range" onchange="toggleCustomDates()">
+                        <option value="current_month" <?php echo $date_range == 'current_month' ? 'selected' : ''; ?>>本月</option>
+                        <option value="last_month" <?php echo $date_range == 'last_month' ? 'selected' : ''; ?>>上月</option>
+                        <option value="current_year" <?php echo $date_range == 'current_year' ? 'selected' : ''; ?>>今年</option>
+                        <option value="last_30_days" <?php echo $date_range == 'last_30_days' ? 'selected' : ''; ?>>最近30天</option>
+                        <option value="last_90_days" <?php echo $date_range == 'last_90_days' ? 'selected' : ''; ?>>最近90天</option>
+                        <option value="custom" <?php echo $date_range == 'custom' ? 'selected' : ''; ?>>自定义日期范围</option>
+                    </select>
+                </div>
+                <div class="col-md-2 custom-date" style="display: <?php echo $date_range == 'custom' ? 'block' : 'none'; ?>">
+                    <label for="start_date" class="form-label">开始日期</label>
+                    <input type="date" class="form-control" id="start_date" name="start_date" value="<?php echo $date_params['custom_start']; ?>">
+                </div>
+                <div class="col-md-2 custom-date" style="display: <?php echo $date_range == 'custom' ? 'block' : 'none'; ?>">
+                    <label for="end_date" class="form-label">结束日期</label>
+                    <input type="date" class="form-control" id="end_date" name="end_date" value="<?php echo $date_params['custom_end']; ?>">
+                </div>
+                <div class="col-md-3">
+                    <label for="period" class="form-label">时间粒度</label>
+                    <select class="form-select" id="period" name="period">
+                        <option value="day" <?php echo $period == 'day' ? 'selected' : ''; ?>>日</option>
+                        <option value="week" <?php echo $period == 'week' ? 'selected' : ''; ?>>周</option>
+                        <option value="month" <?php echo $period == 'month' ? 'selected' : ''; ?>>月</option>
+                    </select>
+                </div>
+                <div class="col-md-2 d-flex align-items-end">
+                    <button type="submit" class="btn btn-primary">应用筛选</button>
+                </div>
+            </form>
+        </div>
+    </div>
+    
+    <!-- 销售概览 -->
+    <div class="card mb-4">
+        <div class="card-header">
+            <i class="fas fa-chart-bar me-1"></i>
+            销售概览
+        </div>
+        <div class="card-body">
+            <?php
+            $sales_overview = getSalesOverview($conn, $start_date, $end_date);
+            renderSalesOverviewCards($sales_overview);
+            ?>
+        </div>
+    </div>
+    
+    <div class="row">
+        <!-- 月度销售趋势 -->
+        <div class="col-lg-12 mb-4">
+            <div class="card">
+                <?php
+                $monthly_sales = getMonthlySalesTrend($conn, $start_date, $end_date);
+                
+                $monthly_labels = [];
+                $monthly_orders = [];
+                $monthly_revenue = [];
+                
+                while ($row = $monthly_sales->fetch_assoc()) {
+                    $monthly_labels[] = $row['month'];
+                    $monthly_orders[] = $row['orders'];
+                    $monthly_revenue[] = $row['revenue'];
+                }
+                
+                renderMonthlySalesTrendChart($monthly_labels, $monthly_orders, $monthly_revenue);
+                ?>
+            </div>
+        </div>
+    </div>
+    
+    <div class="row">
+        <!-- 详细订单趋势 -->
+        <div class="col-lg-12 mb-4">
+            <div class="card">
+                <?php
+                $detailed_trends = getDetailedOrderTrend($conn, $start_date, $end_date, $period);
+                
+                $time_labels = [];
+                $time_orders = [];
+                $time_quantities = [];
+                
+                while ($row = $detailed_trends->fetch_assoc()) {
+                    $time_labels[] = $row['time_period'];
+                    $time_orders[] = $row['order_count'];
+                    $time_quantities[] = $row['total_quantity'];
+                }
+                renderDetailedOrderTrendChart($time_labels, $time_orders, $time_quantities, $period);
+                ?>
+            </div>
+        </div>
+    </div>
+    
+    <style>
+        .stats-grid {
+            display: grid;
+            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
+            gap: 20px;
+            margin-bottom: 20px;
+        }
+        .stat-card {
+            background-color: #f8f9fa;
+            border-radius: 8px;
+            padding: 20px;
+            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
+            text-align: center;
+        }
+        .stat-card h3 {
+            margin-top: 0;
+            color: #495057;
+            font-size: 16px;
+        }
+        .stat-value {
+            font-size: 24px;
+            font-weight: bold;
+            color: #0d6efd;
+            margin-top: 10px;
+        }
+    </style>
+</div>
+
+<script>
+function toggleCustomDates() {
+    const dateRange = document.getElementById('date_range').value;
+    const customDates = document.querySelectorAll('.custom-date');
+    
+    if (dateRange === 'custom') {
+        customDates.forEach(el => el.style.display = 'block');
+    } else {
+        customDates.forEach(el => el.style.display = 'none');
+    }
+}
+</script>
+
+<?php
+// 页面底部
+include('footer.php');
+?> 

statistics.php

@@ -0,0 +1,983 @@
+<?php
+require_once 'conn.php';
+checkLogin();
+
+// 计算日期范围
+$current_month_start = date('Y-m-01');
+$current_month_end = date('Y-m-t');
+$last_month_start = date('Y-m-01', strtotime('-1 month'));
+$last_month_end = date('Y-m-t', strtotime('-1 month'));
+$current_year_start = date('Y-01-01');
+$current_year_end = date('Y-12-31');
+
+// 可选的日期范围筛选
+$date_range = isset($_GET['date_range']) ? $_GET['date_range'] : 'current_month';
+$custom_start = isset($_GET['start_date']) ? $_GET['start_date'] : '';
+$custom_end = isset($_GET['end_date']) ? $_GET['end_date'] : '';
+
+// 设置日期范围
+if ($date_range == 'custom' && !empty($custom_start) && !empty($custom_end)) {
+    $start_date = $custom_start;
+    $end_date = $custom_end;
+} else {
+    switch ($date_range) {
+        case 'last_month':
+            $start_date = $last_month_start;
+            $end_date = $last_month_end;
+            break;
+        case 'current_year':
+            $start_date = $current_year_start;
+            $end_date = $current_year_end;
+            break;
+        case 'last_30_days':
+            $start_date = date('Y-m-d', strtotime('-30 days'));
+            $end_date = date('Y-m-d');
+            break;
+        case 'last_90_days':
+            $start_date = date('Y-m-d', strtotime('-90 days'));
+            $end_date = date('Y-m-d');
+            break;
+        case 'current_month':
+        default:
+            $start_date = $current_month_start;
+            $end_date = $current_month_end;
+            break;
+    }
+}
+
+// 格式化日期用于SQL查询
+$start_date_sql = date('Y-m-d', strtotime($start_date));
+$end_date_sql = date('Y-m-d', strtotime($end_date)) . ' 23:59:59';
+
+// 函数：获取销售概览数据
+function getSalesOverview($conn, $start_date, $end_date) {
+    $sql = "SELECT 
+                COUNT(id) as total_orders,
+                SUM(total_amount) as total_revenue,
+                AVG(total_amount) as avg_order_value
+            FROM orders 
+            WHERE order_date BETWEEN ? AND ?";
+    
+    $stmt = $conn->prepare($sql);
+    $stmt->bind_param("ss", $start_date, $end_date);
+    $stmt->execute();
+    $result = $stmt->get_result();
+    return $result->fetch_assoc();
+}
+
+// 函数：获取每月销售趋势
+function getMonthlySalesTrend($conn, $start_date, $end_date) {
+    $sql = "SELECT 
+                DATE_FORMAT(order_date, '%Y-%m') as month,
+                COUNT(id) as orders,
+                SUM(total_amount) as revenue
+            FROM orders 
+            WHERE order_date BETWEEN ? AND ?
+            GROUP BY DATE_FORMAT(order_date, '%Y-%m')
+            ORDER BY month";
+    
+    $stmt = $conn->prepare($sql);
+    $stmt->bind_param("ss", $start_date, $end_date);
+    $stmt->execute();
+    return $stmt->get_result();
+}
+
+// 函数：获取客户国家分布
+function getCustomerCountryDistribution($conn) {
+    $sql = "SELECT 
+                c.countryName, 
+                COUNT(cu.id) as customer_count
+            FROM customer cu
+            JOIN country c ON cu.cs_country = c.id
+            GROUP BY cu.cs_country
+            ORDER BY customer_count DESC
+            LIMIT 10";
+    
+    return $conn->query($sql);
+}
+
+// 函数：获取客户类型分布
+function getCustomerTypeDistribution($conn) {
+    $sql = "SELECT 
+                ct.businessType, 
+                COUNT(c.id) as customer_count
+            FROM customer c
+            JOIN clienttype ct ON c.cs_type = ct.id
+            GROUP BY c.cs_type";
+    
+    return $conn->query($sql);
+}
+
+// 函数：获取成交阶段分布
+function getDealStageDistribution($conn) {
+    $sql = "SELECT 
+                cs_deal,
+                CASE 
+                    WHEN cs_deal = 1 THEN '背景调查'
+                    WHEN cs_deal = 2 THEN '明确需求'
+                    WHEN cs_deal = 3 THEN '已成交'
+                    ELSE '其他'
+                END as stage_name,
+                COUNT(id) as customer_count
+            FROM customer
+            GROUP BY cs_deal";
+    
+    return $conn->query($sql);
+}
+
+// 函数：获取热门产品
+function getTopProducts($conn, $start_date, $end_date, $limit = 5) {
+    $sql = "SELECT 
+                p.ProductName, 
+                SUM(oi.quantity) as total_quantity,
+                SUM(oi.total_price) as total_revenue
+            FROM order_items oi
+            JOIN products p ON oi.product_id = p.id
+            JOIN orders o ON oi.order_id = o.id
+            WHERE o.order_date BETWEEN ? AND ?
+            GROUP BY oi.product_id
+            ORDER BY total_revenue DESC
+            LIMIT ?";
+    
+    $stmt = $conn->prepare($sql);
+    $stmt->bind_param("ssi", $start_date, $end_date, $limit);
+    $stmt->execute();
+    return $stmt->get_result();
+}
+
+// 函数：获取业务员销售业绩
+function getEmployeeSalesPerformance($conn, $start_date, $end_date) {
+    $sql = "SELECT 
+                e.em_user as employee_name,
+                COUNT(o.id) as order_count,
+                SUM(o.total_amount) as total_sales
+            FROM orders o
+            JOIN employee e ON o.employee_id = e.id
+            WHERE o.order_date BETWEEN ? AND ?
+            GROUP BY o.employee_id
+            ORDER BY total_sales DESC";
+    
+    $stmt = $conn->prepare($sql);
+    $stmt->bind_param("ss", $start_date, $end_date);
+    $stmt->execute();
+    return $stmt->get_result();
+}
+
+// 函数：获取客户增长趋势
+function getCustomerGrowthTrend($conn) {
+    $sql = "SELECT 
+                DATE_FORMAT(cs_addtime, '%Y-%m') as month,
+                COUNT(id) as new_customers
+            FROM customer
+            WHERE cs_addtime >= DATE_SUB(CURDATE(), INTERVAL 12 MONTH)
+            GROUP BY DATE_FORMAT(cs_addtime, '%Y-%m')
+            ORDER BY month";
+    
+    return $conn->query($sql);
+}
+
+// 函数：获取不同地区的订单数量
+function getOrdersByRegion($conn, $start_date, $end_date) {
+    $sql = "SELECT 
+                c.countryName, 
+                COUNT(o.id) as order_count,
+                SUM(o.total_amount) as total_amount,
+                SUM(oi.quantity) as total_quantity
+            FROM orders o
+            JOIN customer cu ON o.customer_id = cu.id
+            JOIN country c ON cu.cs_country = c.id
+            LEFT JOIN order_items oi ON o.id = oi.order_id
+            WHERE o.order_date BETWEEN ? AND ?
+            GROUP BY cu.cs_country
+            ORDER BY total_quantity DESC
+            LIMIT 10";
+    
+    $stmt = $conn->prepare($sql);
+    $stmt->bind_param("ss", $start_date, $end_date);
+    $stmt->execute();
+    return $stmt->get_result();
+}
+
+// 函数：获取详细时间段订单数量
+function getDetailedOrderTrend($conn, $start_date, $end_date, $period = 'day') {
+    $groupFormat = '%Y-%m-%d';
+    $intervalUnit = 'DAY';
+    
+    if ($period == 'week') {
+        $groupFormat = '%x-W%v'; // ISO year and week number
+        $intervalUnit = 'WEEK';
+    } else if ($period == 'month') {
+        $groupFormat = '%Y-%m';
+        $intervalUnit = 'MONTH';
+    }
+    
+    $sql = "SELECT 
+                DATE_FORMAT(o.order_date, '$groupFormat') as time_period,
+                COUNT(o.id) as order_count,
+                SUM(oi.quantity) as total_quantity
+            FROM orders o
+            LEFT JOIN order_items oi ON o.id = oi.order_id
+            WHERE o.order_date BETWEEN ? AND ?
+            GROUP BY time_period
+            ORDER BY MIN(o.order_date)";
+    
+    $stmt = $conn->prepare($sql);
+    $stmt->bind_param("ss", $start_date, $end_date);
+    $stmt->execute();
+    return $stmt->get_result();
+}
+
+// 获取统计数据
+$sales_overview = getSalesOverview($conn, $start_date_sql, $end_date_sql);
+$monthly_sales = getMonthlySalesTrend($conn, $start_date_sql, $end_date_sql);
+$country_distribution = getCustomerCountryDistribution($conn);
+$customer_types = getCustomerTypeDistribution($conn);
+$deal_stages = getDealStageDistribution($conn);
+$top_products = getTopProducts($conn, $start_date_sql, $end_date_sql);
+$employee_performance = getEmployeeSalesPerformance($conn, $start_date_sql, $end_date_sql);
+$customer_growth = getCustomerGrowthTrend($conn);
+$orders_by_region = getOrdersByRegion($conn, $start_date_sql, $end_date_sql);
+
+// 获取详细时间段订单趋势 - 默认按日期
+$period = isset($_GET['period']) ? $_GET['period'] : 'day';
+$detailed_orders = getDetailedOrderTrend($conn, $start_date_sql, $end_date_sql, $period);
+
+// 将月度销售数据转换为图表所需格式
+$monthly_labels = [];
+$monthly_orders = [];
+$monthly_revenue = [];
+
+while ($row = $monthly_sales->fetch_assoc()) {
+    $monthly_labels[] = $row['month'];
+    $monthly_orders[] = $row['orders'];
+    $monthly_revenue[] = $row['revenue'];
+}
+
+// 将国家分布数据转换为图表所需格式
+$country_labels = [];
+$country_data = [];
+
+while ($row = $country_distribution->fetch_assoc()) {
+    $country_labels[] = $row['countryName'];
+    $country_data[] = $row['customer_count'];
+}
+
+// 将客户类型数据转换为图表所需格式
+$type_labels = [];
+$type_data = [];
+
+while ($row = $customer_types->fetch_assoc()) {
+    $type_labels[] = $row['businessType'];
+    $type_data[] = $row['customer_count'];
+}
+
+// 将成交阶段数据转换为图表所需格式
+$stage_labels = [];
+$stage_data = [];
+
+while ($row = $deal_stages->fetch_assoc()) {
+    $stage_labels[] = $row['stage_name'];
+    $stage_data[] = $row['customer_count'];
+}
+
+// 将客户增长数据转换为图表所需格式
+$growth_labels = [];
+$growth_data = [];
+
+while ($row = $customer_growth->fetch_assoc()) {
+    $growth_labels[] = $row['month'];
+    $growth_data[] = $row['new_customers'];
+}
+
+// 将地区订单数据转换为图表所需格式
+$region_labels = [];
+$region_orders = [];
+$region_quantities = [];
+
+while ($row = $orders_by_region->fetch_assoc()) {
+    $region_labels[] = $row['countryName'];
+    $region_orders[] = $row['order_count'];
+    $region_quantities[] = $row['total_quantity'];
+}
+
+// 将详细时间订单数据转换为图表所需格式
+$time_labels = [];
+$time_orders = [];
+$time_quantities = [];
+
+while ($row = $detailed_orders->fetch_assoc()) {
+    $time_labels[] = $row['time_period'];
+    $time_orders[] = $row['order_count'];
+    $time_quantities[] = $row['total_quantity'];
+}
+?>
+
+<!DOCTYPE html>
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+    <title>统计分析</title>
+    <link rel="stylesheet" href="css/common.css" type="text/css" />
+    <script src="system/js/jquery-1.7.2.min.js"></script>
+    <script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
+    <style>
+        body {
+            margin: 0;
+            padding: 20px;
+            background: #fff;
+            font-family: Arial, sans-serif;
+        }
+        
+        .container {
+            width: 100%;
+            max-width: 1200px;
+            margin: 0 auto;
+        }
+        
+        .page-header {
+            margin-bottom: 20px;
+            border-bottom: 1px solid #eee;
+            padding-bottom: 10px;
+            display: flex;
+            justify-content: space-between;
+            align-items: center;
+        }
+        
+        .page-title {
+            font-size: 24px;
+            font-weight: bold;
+            color: #333;
+            margin: 0;
+        }
+        
+        .export-btn {
+            padding: 8px 15px;
+            background: #4CAF50;
+            color: white;
+            border: none;
+            border-radius: 4px;
+            cursor: pointer;
+            text-decoration: none;
+            display: inline-block;
+        }
+        
+        .export-btn:hover {
+            background: #45a049;
+        }
+        
+        .filter-form {
+            background: #f9f9f9;
+            padding: 15px;
+            border-radius: 5px;
+            margin-bottom: 20px;
+            display: flex;
+            flex-wrap: wrap;
+            gap: 15px;
+            align-items: center;
+        }
+        
+        .form-group {
+            margin-right: 15px;
+        }
+        
+        .form-group label {
+            display: block;
+            margin-bottom: 5px;
+            font-weight: bold;
+        }
+        
+        .form-control {
+            padding: 8px;
+            border: 1px solid #ddd;
+            border-radius: 4px;
+            min-width: 150px;
+        }
+        
+        .btn {
+            padding: 8px 15px;
+            background: #337ab7;
+            color: white;
+            border: none;
+            border-radius: 4px;
+            cursor: pointer;
+        }
+        
+        .btn:hover {
+            background: #286090;
+        }
+        
+        .stats-grid {
+            display: grid;
+            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
+            gap: 20px;
+            margin-bottom: 20px;
+        }
+        
+        .stat-card {
+            background: white;
+            border-radius: 5px;
+            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
+            padding: 20px;
+        }
+        
+        .stat-card h3 {
+            margin-top: 0;
+            color: #555;
+            font-size: 16px;
+            border-bottom: 1px solid #eee;
+            padding-bottom: 10px;
+        }
+        
+        .stat-value {
+            font-size: 24px;
+            font-weight: bold;
+            color: #333;
+            margin: 15px 0;
+        }
+        
+        .chart-container {
+            margin-bottom: 30px;
+            background: white;
+            border-radius: 5px;
+            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
+            padding: 20px;
+        }
+        
+        .chart-header {
+            display: flex;
+            justify-content: space-between;
+            align-items: center;
+            margin-bottom: 15px;
+        }
+        
+        .chart-title {
+            font-size: 18px;
+            font-weight: bold;
+            color: #333;
+            margin: 0;
+        }
+        
+        .data-table {
+            width: 100%;
+            border-collapse: collapse;
+            margin-top: 20px;
+        }
+        
+        .data-table th, .data-table td {
+            padding: 10px;
+            text-align: left;
+            border-bottom: 1px solid #eee;
+        }
+        
+        .data-table th {
+            background: #f5f5f5;
+            font-weight: bold;
+        }
+        
+        .data-table tr:hover {
+            background: #f9f9f9;
+        }
+        
+        .custom-date-inputs {
+            display: none;
+        }
+        
+        #date_range[value="custom"]:checked ~ .custom-date-inputs {
+            display: block;
+        }
+        
+        .download-btn {
+            padding: 5px 10px;
+            background: #4CAF50;
+            color: white;
+            border: none;
+            border-radius: 3px;
+            font-size: 14px;
+            cursor: pointer;
+        }
+        
+        .download-btn:hover {
+            background: #45a049;
+        }
+    </style>
+</head>
+<body>
+    <div class="container">
+        <div class="page-header">
+            <h1 class="page-title">统计分析</h1>
+            <a href="export_statistics.php?date_range=<?php echo $date_range; ?>&start_date=<?php echo $custom_start; ?>&end_date=<?php echo $custom_end; ?>&period=<?php echo $period; ?>" class="export-btn">导出数据</a>
+        </div>
+        
+        <div class="filter-form">
+            <form method="get" action="">
+                <div class="form-group">
+                    <label>日期范围</label>
+                    <select name="date_range" id="date_range" class="form-control" onchange="toggleCustomDates()">
+                        <option value="current_month" <?php echo $date_range == 'current_month' ? 'selected' : ''; ?>>本月</option>
+                        <option value="last_month" <?php echo $date_range == 'last_month' ? 'selected' : ''; ?>>上月</option>
+                        <option value="last_30_days" <?php echo $date_range == 'last_30_days' ? 'selected' : ''; ?>>过去30天</option>
+                        <option value="last_90_days" <?php echo $date_range == 'last_90_days' ? 'selected' : ''; ?>>过去90天</option>
+                        <option value="current_year" <?php echo $date_range == 'current_year' ? 'selected' : ''; ?>>今年</option>
+                        <option value="custom" <?php echo $date_range == 'custom' ? 'selected' : ''; ?>>自定义</option>
+                    </select>
+                </div>
+                
+                <div id="custom_dates" style="display: <?php echo $date_range == 'custom' ? 'flex' : 'none'; ?>; gap: 10px;">
+                    <div class="form-group">
+                        <label>开始日期</label>
+                        <input type="date" name="start_date" class="form-control" value="<?php echo $custom_start; ?>">
+                    </div>
+                    <div class="form-group">
+                        <label>结束日期</label>
+                        <input type="date" name="end_date" class="form-control" value="<?php echo $custom_end; ?>">
+                    </div>
+                </div>
+                
+                <div class="form-group">
+                    <label>时间粒度</label>
+                    <select name="period" class="form-control">
+                        <option value="day" <?php echo $period == 'day' ? 'selected' : ''; ?>>按日</option>
+                        <option value="week" <?php echo $period == 'week' ? 'selected' : ''; ?>>按周</option>
+                        <option value="month" <?php echo $period == 'month' ? 'selected' : ''; ?>>按月</option>
+                    </select>
+                </div>
+                
+                <div class="form-group" style="align-self: flex-end;">
+                    <input type="submit" class="btn" value="应用筛选">
+                </div>
+            </form>
+        </div>
+        
+        <!-- 销售概览卡片 -->
+        <div class="stats-grid">
+            <div class="stat-card">
+                <h3>总订单数</h3>
+                <div class="stat-value"><?php echo number_format($sales_overview['total_orders']); ?></div>
+            </div>
+            
+            <div class="stat-card">
+                <h3>总收入</h3>
+                <div class="stat-value">¥<?php echo number_format($sales_overview['total_revenue'], 2); ?></div>
+            </div>
+            
+            <div class="stat-card">
+                <h3>平均订单金额</h3>
+                <div class="stat-value">¥<?php echo number_format($sales_overview['avg_order_value'], 2); ?></div>
+            </div>
+        </div>
+        
+        <!-- 月度销售趋势图 -->
+        <div class="chart-container">
+            <div class="chart-header">
+                <h2 class="chart-title">销售趋势</h2>
+            </div>
+            <canvas id="salesTrendChart"></canvas>
+        </div>
+        
+        <!-- 客户分布图 -->
+        <div class="stats-grid">
+            <div class="chart-container">
+                <div class="chart-header">
+                    <h2 class="chart-title">客户国家分布</h2>
+                </div>
+                <canvas id="countryDistributionChart"></canvas>
+            </div>
+            
+            <div class="chart-container">
+                <div class="chart-header">
+                    <h2 class="chart-title">客户类型分布</h2>
+                </div>
+                <canvas id="customerTypeChart"></canvas>
+            </div>
+        </div>
+        
+        <div class="stats-grid">
+            <div class="chart-container">
+                <div class="chart-header">
+                    <h2 class="chart-title">成交阶段分布</h2>
+                </div>
+                <canvas id="dealStageChart"></canvas>
+            </div>
+            
+            <div class="chart-container">
+                <div class="chart-header">
+                    <h2 class="chart-title">客户增长趋势</h2>
+                </div>
+                <canvas id="customerGrowthChart"></canvas>
+            </div>
+        </div>
+        
+        <!-- 地区订单分析 -->
+        <div class="chart-container">
+            <div class="chart-header">
+                <h2 class="chart-title">地区订单分析</h2>
+            </div>
+            <canvas id="regionOrdersChart"></canvas>
+        </div>
+        
+        <!-- 详细时间段订单趋势 -->
+        <div class="chart-container">
+            <div class="chart-header">
+                <h2 class="chart-title">详细订单趋势 (<?php echo $period == 'day' ? '日' : ($period == 'week' ? '周' : '月'); ?>)</h2>
+            </div>
+            <canvas id="detailedOrdersChart"></canvas>
+        </div>
+        
+        <!-- 热门产品表格 -->
+        <div class="chart-container">
+            <div class="chart-header">
+                <h2 class="chart-title">热门产品</h2>
+            </div>
+            <table class="data-table">
+                <thead>
+                    <tr>
+                        <th>产品名称</th>
+                        <th>销售数量</th>
+                        <th>销售收入</th>
+                    </tr>
+                </thead>
+                <tbody>
+                    <?php while ($row = $top_products->fetch_assoc()): ?>
+                    <tr>
+                        <td><?php echo htmlspecialchars($row['ProductName']); ?></td>
+                        <td><?php echo number_format($row['total_quantity']); ?></td>
+                        <td>¥<?php echo number_format($row['total_revenue'], 2); ?></td>
+                    </tr>
+                    <?php endwhile; ?>
+                </tbody>
+            </table>
+        </div>
+        
+        <!-- 业务员销售业绩表格 -->
+        <div class="chart-container">
+            <div class="chart-header">
+                <h2 class="chart-title">业务员销售业绩</h2>
+            </div>
+            <table class="data-table">
+                <thead>
+                    <tr>
+                        <th>业务员姓名</th>
+                        <th>订单数量</th>
+                        <th>销售总额</th>
+                    </tr>
+                </thead>
+                <tbody>
+                    <?php while ($row = $employee_performance->fetch_assoc()): ?>
+                    <tr>
+                        <td><?php echo htmlspecialchars($row['employee_name']); ?></td>
+                        <td><?php echo number_format($row['order_count']); ?></td>
+                        <td>¥<?php echo number_format($row['total_sales'], 2); ?></td>
+                    </tr>
+                    <?php endwhile; ?>
+                </tbody>
+            </table>
+        </div>
+    </div>
+    
+    <script>
+        // 切换自定义日期区域显示
+        function toggleCustomDates() {
+            var dateRange = document.getElementById('date_range').value;
+            var customDates = document.getElementById('custom_dates');
+            
+            if (dateRange === 'custom') {
+                customDates.style.display = 'flex';
+            } else {
+                customDates.style.display = 'none';
+            }
+        }
+        
+        // 销售趋势图
+        var salesTrendCtx = document.getElementById('salesTrendChart').getContext('2d');
+        var salesTrendChart = new Chart(salesTrendCtx, {
+            type: 'line',
+            data: {
+                labels: <?php echo json_encode($monthly_labels); ?>,
+                datasets: [
+                    {
+                        label: '订单数量',
+                        data: <?php echo json_encode($monthly_orders); ?>,
+                        backgroundColor: 'rgba(54, 162, 235, 0.2)',
+                        borderColor: 'rgba(54, 162, 235, 1)',
+                        borderWidth: 2,
+                        yAxisID: 'y-orders'
+                    },
+                    {
+                        label: '销售收入',
+                        data: <?php echo json_encode($monthly_revenue); ?>,
+                        backgroundColor: 'rgba(255, 99, 132, 0.2)',
+                        borderColor: 'rgba(255, 99, 132, 1)',
+                        borderWidth: 2,
+                        yAxisID: 'y-revenue'
+                    }
+                ]
+            },
+            options: {
+                responsive: true,
+                scales: {
+                    'y-orders': {
+                        type: 'linear',
+                        position: 'left',
+                        title: {
+                            display: true,
+                            text: '订单数量'
+                        }
+                    },
+                    'y-revenue': {
+                        type: 'linear',
+                        position: 'right',
+                        title: {
+                            display: true,
+                            text: '销售收入'
+                        },
+                        grid: {
+                            drawOnChartArea: false
+                        }
+                    }
+                }
+            }
+        });
+        
+        // 客户国家分布图
+        var countryDistributionCtx = document.getElementById('countryDistributionChart').getContext('2d');
+        var countryDistributionChart = new Chart(countryDistributionCtx, {
+            type: 'pie',
+            data: {
+                labels: <?php echo json_encode($country_labels); ?>,
+                datasets: [{
+                    data: <?php echo json_encode($country_data); ?>,
+                    backgroundColor: [
+                        'rgba(255, 99, 132, 0.7)',
+                        'rgba(54, 162, 235, 0.7)',
+                        'rgba(255, 206, 86, 0.7)',
+                        'rgba(75, 192, 192, 0.7)',
+                        'rgba(153, 102, 255, 0.7)',
+                        'rgba(255, 159, 64, 0.7)',
+                        'rgba(199, 199, 199, 0.7)',
+                        'rgba(83, 102, 255, 0.7)',
+                        'rgba(40, 159, 64, 0.7)',
+                        'rgba(210, 199, 199, 0.7)'
+                    ],
+                    borderWidth: 1
+                }]
+            },
+            options: {
+                responsive: true,
+                plugins: {
+                    legend: {
+                        position: 'right',
+                    }
+                }
+            }
+        });
+        
+        // 客户类型分布图
+        var customerTypeCtx = document.getElementById('customerTypeChart').getContext('2d');
+        var customerTypeChart = new Chart(customerTypeCtx, {
+            type: 'doughnut',
+            data: {
+                labels: <?php echo json_encode($type_labels); ?>,
+                datasets: [{
+                    data: <?php echo json_encode($type_data); ?>,
+                    backgroundColor: [
+                        'rgba(54, 162, 235, 0.7)',
+                        'rgba(255, 99, 132, 0.7)',
+                        'rgba(255, 206, 86, 0.7)',
+                        'rgba(75, 192, 192, 0.7)',
+                        'rgba(153, 102, 255, 0.7)'
+                    ],
+                    borderWidth: 1
+                }]
+            },
+            options: {
+                responsive: true,
+                plugins: {
+                    legend: {
+                        position: 'right',
+                    }
+                }
+            }
+        });
+        
+        // 成交阶段分布图
+        var dealStageCtx = document.getElementById('dealStageChart').getContext('2d');
+        var dealStageChart = new Chart(dealStageCtx, {
+            type: 'bar',
+            data: {
+                labels: <?php echo json_encode($stage_labels); ?>,
+                datasets: [{
+                    label: '客户数量',
+                    data: <?php echo json_encode($stage_data); ?>,
+                    backgroundColor: [
+                        'rgba(255, 206, 86, 0.7)',
+                        'rgba(54, 162, 235, 0.7)',
+                        'rgba(255, 99, 132, 0.7)'
+                    ],
+                    borderWidth: 1
+                }]
+            },
+            options: {
+                responsive: true,
+                scales: {
+                    y: {
+                        beginAtZero: true,
+                        title: {
+                            display: true,
+                            text: '客户数量'
+                        }
+                    }
+                }
+            }
+        });
+        
+        // 客户增长趋势图
+        var customerGrowthCtx = document.getElementById('customerGrowthChart').getContext('2d');
+        var customerGrowthChart = new Chart(customerGrowthCtx, {
+            type: 'line',
+            data: {
+                labels: <?php echo json_encode($growth_labels); ?>,
+                datasets: [{
+                    label: '新增客户',
+                    data: <?php echo json_encode($growth_data); ?>,
+                    backgroundColor: 'rgba(75, 192, 192, 0.2)',
+                    borderColor: 'rgba(75, 192, 192, 1)',
+                    borderWidth: 2,
+                    tension: 0.1
+                }]
+            },
+            options: {
+                responsive: true,
+                scales: {
+                    y: {
+                        beginAtZero: true,
+                        title: {
+                            display: true,
+                            text: '客户数量'
+                        }
+                    }
+                }
+            }
+        });
+        
+        // 地区订单分析图
+        var regionOrdersCtx = document.getElementById('regionOrdersChart').getContext('2d');
+        var regionOrdersChart = new Chart(regionOrdersCtx, {
+            type: 'bar',
+            data: {
+                labels: <?php echo json_encode($region_labels); ?>,
+                datasets: [
+                    {
+                        label: '订单数量',
+                        data: <?php echo json_encode($region_orders); ?>,
+                        backgroundColor: 'rgba(54, 162, 235, 0.6)',
+                        borderColor: 'rgba(54, 162, 235, 1)',
+                        borderWidth: 1,
+                        yAxisID: 'y-orders'
+                    },
+                    {
+                        label: '产品订购数量',
+                        data: <?php echo json_encode($region_quantities); ?>,
+                        backgroundColor: 'rgba(255, 99, 132, 0.6)',
+                        borderColor: 'rgba(255, 99, 132, 1)',
+                        borderWidth: 1,
+                        yAxisID: 'y-quantity'
+                    }
+                ]
+            },
+            options: {
+                responsive: true,
+                scales: {
+                    x: {
+                        title: {
+                            display: true,
+                            text: '地区'
+                        }
+                    },
+                    'y-orders': {
+                        type: 'linear',
+                        position: 'left',
+                        title: {
+                            display: true,
+                            text: '订单数量'
+                        },
+                        beginAtZero: true
+                    },
+                    'y-quantity': {
+                        type: 'linear',
+                        position: 'right',
+                        title: {
+                            display: true,
+                            text: '产品订购数量'
+                        },
+                        beginAtZero: true,
+                        grid: {
+                            drawOnChartArea: false
+                        }
+                    }
+                }
+            }
+        });
+        
+        // 详细时间段订单趋势图
+        var detailedOrdersCtx = document.getElementById('detailedOrdersChart').getContext('2d');
+        var detailedOrdersChart = new Chart(detailedOrdersCtx, {
+            type: 'line',
+            data: {
+                labels: <?php echo json_encode($time_labels); ?>,
+                datasets: [
+                    {
+                        label: '订单数量',
+                        data: <?php echo json_encode($time_orders); ?>,
+                        backgroundColor: 'rgba(75, 192, 192, 0.2)',
+                        borderColor: 'rgba(75, 192, 192, 1)',
+                        borderWidth: 2,
+                        yAxisID: 'y-orders',
+                        tension: 0.1
+                    },
+                    {
+                        label: '产品订购数量',
+                        data: <?php echo json_encode($time_quantities); ?>,
+                        backgroundColor: 'rgba(255, 159, 64, 0.2)',
+                        borderColor: 'rgba(255, 159, 64, 1)',
+                        borderWidth: 2,
+                        yAxisID: 'y-quantity',
+                        tension: 0.1
+                    }
+                ]
+            },
+            options: {
+                responsive: true,
+                scales: {
+                    x: {
+                        title: {
+                            display: true,
+                            text: '时间'
+                        }
+                    },
+                    'y-orders': {
+                        type: 'linear',
+                        position: 'left',
+                        title: {
+                            display: true,
+                            text: '订单数量'
+                        },
+                        beginAtZero: true
+                    },
+                    'y-quantity': {
+                        type: 'linear',
+                        position: 'right',
+                        title: {
+                            display: true,
+                            text: '产品订购数量'
+                        },
+                        beginAtZero: true,
+                        grid: {
+                            drawOnChartArea: false
+                        }
+                    }
+                }
+            }
+        });
+    </script>
+</body>
+</html> 

statistics_customers.php

@@ -0,0 +1,439 @@
+<?php
+/**
+ * 客户统计分析模块
+ * 
+ * 包含与客户相关的数据分析功能
+ */
+
+require_once 'statistics_utils.php';
+
+/**
+ * 获取客户类型分布
+ * 
+ * @param mysqli $conn 数据库连接
+ * @return mysqli_result 客户类型分布数据结果集
+ */
+function getCustomerTypeDistribution($conn) {
+    $sql = "SELECT 
+                ct.businessType, 
+                COUNT(c.id) as customer_count
+            FROM customer c
+            JOIN clienttype ct ON c.cs_type = ct.id
+            GROUP BY c.cs_type";
+    
+    return $conn->query($sql);
+}
+
+/**
+ * 获取成交阶段分布
+ * 
+ * @param mysqli $conn 数据库连接
+ * @return mysqli_result 成交阶段分布数据结果集
+ */
+function getDealStageDistribution($conn) {
+    $sql = "SELECT 
+                cs_deal,
+                CASE 
+                    WHEN cs_deal = 1 THEN '背景调查'
+                    WHEN cs_deal = 2 THEN '明确需求'
+                    WHEN cs_deal = 3 THEN '已成交'
+                    ELSE '其他'
+                END as stage_name,
+                COUNT(id) as customer_count
+            FROM customer
+            GROUP BY cs_deal";
+    
+    return $conn->query($sql);
+}
+
+/**
+ * 获取客户增长趋势
+ * 
+ * @param mysqli $conn 数据库连接
+ * @param int $months 获取多少个月的数据，默认12个月
+ * @return mysqli_result 客户增长趋势数据结果集
+ */
+function getCustomerGrowthTrend($conn, $months = 12) {
+    $sql = "SELECT 
+                DATE_FORMAT(cs_addtime, '%Y-%m') as month,
+                COUNT(id) as new_customers
+            FROM customer
+            WHERE cs_addtime >= DATE_SUB(CURDATE(), INTERVAL ? MONTH)
+            GROUP BY DATE_FORMAT(cs_addtime, '%Y-%m')
+            ORDER BY month";
+    
+    $stmt = $conn->prepare($sql);
+    $stmt->bind_param("i", $months);
+    $stmt->execute();
+    return $stmt->get_result();
+}
+
+/**
+ * 获取新老客户订单分析
+ * 
+ * @param mysqli $conn 数据库连接
+ * @param string $start_date 开始日期
+ * @param string $end_date 结束日期
+ * @return array 新老客户订单分析数据
+ */
+function getNewVsReturningCustomerOrders($conn, $start_date, $end_date) {
+    // 获取选定日期范围内的订单
+    $sql = "SELECT
+                o.customer_id,
+                COUNT(o.id) as order_count,
+                SUM(o.total_amount) as total_amount,
+                MIN(o.order_date) as first_order_date,
+                c.cs_addtime as customer_addtime
+            FROM orders o
+            JOIN customer c ON o.customer_id = c.id
+            WHERE o.order_date BETWEEN ? AND ?
+            GROUP BY o.customer_id";
+    
+    $stmt = $conn->prepare($sql);
+    $stmt->bind_param("ss", $start_date, $end_date);
+    $stmt->execute();
+    $result = $stmt->get_result();
+    
+    $new_customers = 0;
+    $returning_customers = 0;
+    $new_customer_amount = 0;
+    $returning_customer_amount = 0;
+    
+    while ($row = $result->fetch_assoc()) {
+        // 查找之前是否有订单
+        $prev_sql = "SELECT id FROM orders 
+                     WHERE customer_id = ? 
+                     AND order_date < ? 
+                     LIMIT 1";
+        
+        $prev_stmt = $conn->prepare($prev_sql);
+        $prev_stmt->bind_param("is", $row['customer_id'], $start_date);
+        $prev_stmt->execute();
+        $prev_result = $prev_stmt->get_result();
+        
+        if ($prev_result->num_rows > 0) {
+            // 老客户
+            $returning_customers++;
+            $returning_customer_amount += $row['total_amount'];
+        } else {
+            // 新客户
+            $new_customers++;
+            $new_customer_amount += $row['total_amount'];
+        }
+    }
+    
+    return [
+        'new_customers' => $new_customers,
+        'returning_customers' => $returning_customers,
+        'new_customer_amount' => $new_customer_amount,
+        'returning_customer_amount' => $returning_customer_amount,
+        'total_customers' => $new_customers + $returning_customers,
+        'total_amount' => $new_customer_amount + $returning_customer_amount
+    ];
+}
+
+/**
+ * 渲染客户类型分布图
+ * 
+ * @param array $type_labels 类型标签
+ * @param array $type_data 类型数据
+ * @return void
+ */
+function renderCustomerTypeChart($type_labels, $type_data) {
+    ?>
+    <div class="chart-container">
+        <div class="chart-header">
+            <h2 class="chart-title">客户类型分布</h2>
+        </div>
+        <canvas id="customerTypeChart"></canvas>
+    </div>
+    
+    <script>
+        // 客户类型分布图
+        var customerTypeCtx = document.getElementById('customerTypeChart').getContext('2d');
+        var customerTypeChart = new Chart(customerTypeCtx, {
+            type: 'doughnut',
+            data: {
+                labels: <?php echo json_encode($type_labels); ?>,
+                datasets: [{
+                    data: <?php echo json_encode($type_data); ?>,
+                    backgroundColor: [
+                        'rgba(54, 162, 235, 0.7)',
+                        'rgba(255, 99, 132, 0.7)',
+                        'rgba(255, 206, 86, 0.7)',
+                        'rgba(75, 192, 192, 0.7)',
+                        'rgba(153, 102, 255, 0.7)'
+                    ],
+                    borderWidth: 1
+                }]
+            },
+            options: {
+                responsive: true,
+                plugins: {
+                    legend: {
+                        position: 'right',
+                    }
+                }
+            }
+        });
+    </script>
+    <?php
+}
+
+/**
+ * 渲染成交阶段分布图
+ * 
+ * @param array $stage_labels 阶段标签
+ * @param array $stage_data 阶段数据
+ * @return void
+ */
+function renderDealStageChart($stage_labels, $stage_data) {
+    ?>
+    <div class="chart-container">
+        <div class="chart-header">
+            <h2 class="chart-title">成交阶段分布</h2>
+        </div>
+        <canvas id="dealStageChart"></canvas>
+    </div>
+    
+    <script>
+        // 成交阶段分布图
+        var dealStageCtx = document.getElementById('dealStageChart').getContext('2d');
+        var dealStageChart = new Chart(dealStageCtx, {
+            type: 'bar',
+            data: {
+                labels: <?php echo json_encode($stage_labels); ?>,
+                datasets: [{
+                    label: '客户数量',
+                    data: <?php echo json_encode($stage_data); ?>,
+                    backgroundColor: [
+                        'rgba(255, 206, 86, 0.7)',
+                        'rgba(54, 162, 235, 0.7)',
+                        'rgba(255, 99, 132, 0.7)'
+                    ],
+                    borderWidth: 1
+                }]
+            },
+            options: {
+                responsive: true,
+                scales: {
+                    y: {
+                        beginAtZero: true,
+                        title: {
+                            display: true,
+                            text: '客户数量'
+                        }
+                    }
+                }
+            }
+        });
+    </script>
+    <?php
+}
+
+/**
+ * 渲染客户增长趋势图
+ * 
+ * @param array $growth_labels 增长标签
+ * @param array $growth_data 增长数据
+ * @return void
+ */
+function renderCustomerGrowthChart($growth_labels, $growth_data) {
+    ?>
+    <div class="chart-container">
+        <div class="chart-header">
+            <h2 class="chart-title">客户增长趋势</h2>
+        </div>
+        <canvas id="customerGrowthChart"></canvas>
+    </div>
+    
+    <script>
+        // 客户增长趋势图
+        var customerGrowthCtx = document.getElementById('customerGrowthChart').getContext('2d');
+        var customerGrowthChart = new Chart(customerGrowthCtx, {
+            type: 'line',
+            data: {
+                labels: <?php echo json_encode($growth_labels); ?>,
+                datasets: [{
+                    label: '新增客户',
+                    data: <?php echo json_encode($growth_data); ?>,
+                    backgroundColor: 'rgba(75, 192, 192, 0.2)',
+                    borderColor: 'rgba(75, 192, 192, 1)',
+                    borderWidth: 2,
+                    tension: 0.1
+                }]
+            },
+            options: {
+                responsive: true,
+                scales: {
+                    y: {
+                        beginAtZero: true,
+                        title: {
+                            display: true,
+                            text: '客户数量'
+                        }
+                    }
+                }
+            }
+        });
+    </script>
+    <?php
+}
+
+/**
+ * 渲染新老客户分析图
+ * 
+ * @param array $new_vs_returning 新老客户数据
+ * @return void
+ */
+function renderNewVsReturningCustomersChart($new_vs_returning) {
+    ?>
+    <div class="chart-container">
+        <div class="chart-header">
+            <h2 class="chart-title">新老客户分析</h2>
+        </div>
+        <div class="row">
+            <div class="col-md-6">
+                <canvas id="newVsReturningCustomersChart"></canvas>
+            </div>
+            <div class="col-md-6">
+                <canvas id="newVsReturningAmountChart"></canvas>
+            </div>
+        </div>
+        <div class="customer-stats-summary">
+            <div class="stats-row">
+                <div class="stat-item">
+                    <span class="stat-label">总客户数:</span>
+                    <span class="stat-value"><?php echo number_format($new_vs_returning['total_customers']); ?></span>
+                </div>
+                <div class="stat-item">
+                    <span class="stat-label">新客户:</span>
+                    <span class="stat-value"><?php echo number_format($new_vs_returning['new_customers']); ?> 
+                    (<?php echo number_format(($new_vs_returning['new_customers'] / $new_vs_returning['total_customers']) * 100, 1); ?>%)</span>
+                </div>
+                <div class="stat-item">
+                    <span class="stat-label">老客户:</span>
+                    <span class="stat-value"><?php echo number_format($new_vs_returning['returning_customers']); ?> 
+                    (<?php echo number_format(($new_vs_returning['returning_customers'] / $new_vs_returning['total_customers']) * 100, 1); ?>%)</span>
+                </div>
+            </div>
+            <div class="stats-row">
+                <div class="stat-item">
+                    <span class="stat-label">总销售额:</span>
+                    <span class="stat-value">¥<?php echo number_format($new_vs_returning['total_amount'], 2); ?></span>
+                </div>
+                <div class="stat-item">
+                    <span class="stat-label">新客户销售额:</span>
+                    <span class="stat-value">¥<?php echo number_format($new_vs_returning['new_customer_amount'], 2); ?> 
+                    (<?php echo number_format(($new_vs_returning['new_customer_amount'] / $new_vs_returning['total_amount']) * 100, 1); ?>%)</span>
+                </div>
+                <div class="stat-item">
+                    <span class="stat-label">老客户销售额:</span>
+                    <span class="stat-value">¥<?php echo number_format($new_vs_returning['returning_customer_amount'], 2); ?> 
+                    (<?php echo number_format(($new_vs_returning['returning_customer_amount'] / $new_vs_returning['total_amount']) * 100, 1); ?>%)</span>
+                </div>
+            </div>
+        </div>
+    </div>
+    
+    <script>
+        // 新老客户数量图
+        var newVsReturningCtx = document.getElementById('newVsReturningCustomersChart').getContext('2d');
+        var newVsReturningChart = new Chart(newVsReturningCtx, {
+            type: 'pie',
+            data: {
+                labels: ['新客户', '老客户'],
+                datasets: [{
+                    data: [
+                        <?php echo $new_vs_returning['new_customers']; ?>, 
+                        <?php echo $new_vs_returning['returning_customers']; ?>
+                    ],
+                    backgroundColor: [
+                        'rgba(54, 162, 235, 0.7)',
+                        'rgba(255, 99, 132, 0.7)'
+                    ],
+                    borderWidth: 1
+                }]
+            },
+            options: {
+                responsive: true,
+                plugins: {
+                    legend: {
+                        position: 'bottom',
+                    },
+                    title: {
+                        display: true,
+                        text: '客户数量分布'
+                    }
+                }
+            }
+        });
+        
+        // 新老客户销售额图
+        var amountCtx = document.getElementById('newVsReturningAmountChart').getContext('2d');
+        var amountChart = new Chart(amountCtx, {
+            type: 'pie',
+            data: {
+                labels: ['新客户销售额', '老客户销售额'],
+                datasets: [{
+                    data: [
+                        <?php echo $new_vs_returning['new_customer_amount']; ?>, 
+                        <?php echo $new_vs_returning['returning_customer_amount']; ?>
+                    ],
+                    backgroundColor: [
+                        'rgba(54, 162, 235, 0.7)',
+                        'rgba(255, 99, 132, 0.7)'
+                    ],
+                    borderWidth: 1
+                }]
+            },
+            options: {
+                responsive: true,
+                plugins: {
+                    legend: {
+                        position: 'bottom',
+                    },
+                    title: {
+                        display: true,
+                        text: '销售额分布'
+                    }
+                }
+            }
+        });
+    </script>
+    <style>
+        .row {
+            display: flex;
+            flex-wrap: wrap;
+        }
+        .col-md-6 {
+            flex: 0 0 50%;
+            max-width: 50%;
+        }
+        .customer-stats-summary {
+            margin-top: 20px;
+            padding: 15px;
+            background-color: #f9f9f9;
+            border-radius: 5px;
+        }
+        .stats-row {
+            display: flex;
+            margin-bottom: 15px;
+        }
+        .stat-item {
+            flex: 1;
+            padding: 0 10px;
+        }
+        .stat-label {
+            display: block;
+            font-weight: bold;
+            margin-bottom: 5px;
+            color: #555;
+        }
+        .stat-value {
+            font-size: 16px;
+            color: #333;
+        }
+    </style>
+    <?php
+} 

statistics_products.php

@@ -0,0 +1,382 @@
+<?php
+/**
+ * 产品统计分析模块
+ * 
+ * 包含与产品相关的数据分析功能
+ */
+
+require_once 'statistics_utils.php';
+
+/**
+ * 获取热门产品数据
+ * 
+ * @param mysqli $conn 数据库连接
+ * @param string $start_date 开始日期
+ * @param string $end_date 结束日期
+ * @param int $limit 限制返回的产品数量
+ * @return mysqli_result 热门产品数据结果集
+ */
+function getTopProducts($conn, $start_date, $end_date, $limit = 5) {
+    $sql = "SELECT 
+                p.ProductName, 
+                SUM(oi.quantity) as total_quantity,
+                SUM(oi.total_price) as total_revenue
+            FROM order_items oi
+            JOIN products p ON oi.product_id = p.id
+            JOIN orders o ON oi.order_id = o.id
+            WHERE o.order_date BETWEEN ? AND ?
+            GROUP BY oi.product_id
+            ORDER BY total_revenue DESC
+            LIMIT ?";
+    
+    $stmt = $conn->prepare($sql);
+    $stmt->bind_param("ssi", $start_date, $end_date, $limit);
+    $stmt->execute();
+    return $stmt->get_result();
+}
+
+/**
+ * 获取产品销售趋势
+ * 
+ * @param mysqli $conn 数据库连接
+ * @param string $start_date 开始日期
+ * @param string $end_date 结束日期
+ * @param int $product_id 产品ID，为0时获取所有产品的总体趋势
+ * @param string $period 时间粒度 (day/week/month)
+ * @return mysqli_result 产品销售趋势数据结果集
+ */
+function getProductSalesTrend($conn, $start_date, $end_date, $product_id = 0, $period = 'month') {
+    $groupFormat = '%Y-%m-%d';
+    if ($period == 'week') {
+        $groupFormat = '%x-W%v'; // ISO year and week number
+    } else if ($period == 'month') {
+        $groupFormat = '%Y-%m';
+    }
+    
+    $sql = "SELECT 
+                DATE_FORMAT(o.order_date, '$groupFormat') as time_period,
+                SUM(oi.quantity) as total_quantity,
+                SUM(oi.total_price) as total_revenue,
+                COUNT(DISTINCT o.id) as order_count
+            FROM order_items oi
+            JOIN orders o ON oi.order_id = o.id";
+    
+    if ($product_id > 0) {
+        $sql .= " WHERE o.order_date BETWEEN ? AND ? AND oi.product_id = ?";
+    } else {
+        $sql .= " WHERE o.order_date BETWEEN ? AND ?";
+    }
+    
+    $sql .= " GROUP BY time_period
+              ORDER BY MIN(o.order_date)";
+    
+    $stmt = $conn->prepare($sql);
+    
+    if ($product_id > 0) {
+        $stmt->bind_param("ssi", $start_date, $end_date, $product_id);
+    } else {
+        $stmt->bind_param("ss", $start_date, $end_date);
+    }
+    
+    $stmt->execute();
+    return $stmt->get_result();
+}
+
+/**
+ * 获取产品类别销售分布
+ * 
+ * @param mysqli $conn 数据库连接
+ * @param string $start_date 开始日期
+ * @param string $end_date 结束日期
+ * @return mysqli_result 产品类别销售分布数据结果集
+ */
+function getProductCategorySales($conn, $start_date, $end_date) {
+    $sql = "SELECT 
+                pc.name as category_name, 
+                SUM(oi.quantity) as total_quantity,
+                SUM(oi.total_price) as total_revenue,
+                COUNT(DISTINCT o.id) as order_count
+            FROM order_items oi
+            JOIN products p ON oi.product_id = p.id
+            JOIN product_categories pc ON p.category_id = pc.id
+            JOIN orders o ON oi.order_id = o.id
+            WHERE o.order_date BETWEEN ? AND ?
+            GROUP BY p.category_id
+            ORDER BY total_revenue DESC";
+    
+    $stmt = $conn->prepare($sql);
+    $stmt->bind_param("ss", $start_date, $end_date);
+    $stmt->execute();
+    return $stmt->get_result();
+}
+
+/**
+ * 获取产品与地区关联分析
+ * 
+ * @param mysqli $conn 数据库连接
+ * @param string $start_date 开始日期
+ * @param string $end_date 结束日期
+ * @param int $limit 限制返回的产品-地区组合数量
+ * @return mysqli_result 产品与地区关联分析数据结果集
+ */
+function getProductRegionAnalysis($conn, $start_date, $end_date, $limit = 10) {
+    $sql = "SELECT 
+                p.ProductName, 
+                c.countryName,
+                SUM(oi.quantity) as total_quantity,
+                SUM(oi.total_price) as total_revenue
+            FROM order_items oi
+            JOIN products p ON oi.product_id = p.id
+            JOIN orders o ON oi.order_id = o.id
+            JOIN customer cu ON o.customer_id = cu.id
+            JOIN country c ON cu.cs_country = c.id
+            WHERE o.order_date BETWEEN ? AND ?
+            GROUP BY oi.product_id, cu.cs_country
+            ORDER BY total_revenue DESC
+            LIMIT ?";
+    
+    $stmt = $conn->prepare($sql);
+    $stmt->bind_param("ssi", $start_date, $end_date, $limit);
+    $stmt->execute();
+    return $stmt->get_result();
+}
+
+/**
+ * 渲染热门产品表格
+ * 
+ * @param mysqli_result $top_products 热门产品数据
+ * @return void
+ */
+function renderTopProductsTable($top_products) {
+    ?>
+    <div class="chart-container">
+        <div class="chart-header">
+            <h2 class="chart-title">热门产品</h2>
+        </div>
+        <table class="data-table">
+            <thead>
+                <tr>
+                    <th>产品名称</th>
+                    <th>销售数量</th>
+                    <th>销售收入</th>
+                </tr>
+            </thead>
+            <tbody>
+                <?php while ($row = $top_products->fetch_assoc()): ?>
+                <tr>
+                    <td><?php echo htmlspecialchars($row['ProductName']); ?></td>
+                    <td><?php echo number_format($row['total_quantity']); ?></td>
+                    <td>¥<?php echo number_format($row['total_revenue'], 2); ?></td>
+                </tr>
+                <?php endwhile; ?>
+            </tbody>
+        </table>
+    </div>
+    <?php
+}
+
+/**
+ * 渲染产品销售趋势图
+ * 
+ * @param array $time_labels 时间标签
+ * @param array $quantities 产品销售数量
+ * @param array $revenues 产品销售收入
+ * @return void
+ */
+function renderProductSalesTrendChart($time_labels, $quantities, $revenues) {
+    ?>
+    <div class="chart-container">
+        <div class="chart-header">
+            <h2 class="chart-title">产品销售趋势</h2>
+        </div>
+        <canvas id="productSalesTrendChart"></canvas>
+    </div>
+    
+    <script>
+        // 产品销售趋势图
+        var productSalesTrendCtx = document.getElementById('productSalesTrendChart').getContext('2d');
+        var productSalesTrendChart = new Chart(productSalesTrendCtx, {
+            type: 'line',
+            data: {
+                labels: <?php echo json_encode($time_labels); ?>,
+                datasets: [
+                    {
+                        label: '销售数量',
+                        data: <?php echo json_encode($quantities); ?>,
+                        backgroundColor: 'rgba(54, 162, 235, 0.2)',
+                        borderColor: 'rgba(54, 162, 235, 1)',
+                        borderWidth: 2,
+                        yAxisID: 'y-quantity',
+                        tension: 0.1
+                    },
+                    {
+                        label: '销售收入',
+                        data: <?php echo json_encode($revenues); ?>,
+                        backgroundColor: 'rgba(255, 99, 132, 0.2)',
+                        borderColor: 'rgba(255, 99, 132, 1)',
+                        borderWidth: 2,
+                        yAxisID: 'y-revenue',
+                        tension: 0.1
+                    }
+                ]
+            },
+            options: {
+                responsive: true,
+                scales: {
+                    'y-quantity': {
+                        type: 'linear',
+                        position: 'left',
+                        title: {
+                            display: true,
+                            text: '销售数量'
+                        },
+                        beginAtZero: true
+                    },
+                    'y-revenue': {
+                        type: 'linear',
+                        position: 'right',
+                        title: {
+                            display: true,
+                            text: '销售收入'
+                        },
+                        beginAtZero: true,
+                        grid: {
+                            drawOnChartArea: false
+                        }
+                    }
+                }
+            }
+        });
+    </script>
+    <?php
+}
+
+/**
+ * 渲染产品类别销售分布图
+ * 
+ * @param array $categories 类别名称
+ * @param array $quantities 类别销售数量
+ * @param array $revenues 类别销售收入
+ * @return void
+ */
+function renderProductCategorySalesChart($categories, $quantities, $revenues) {
+    ?>
+    <div class="chart-container">
+        <div class="chart-header">
+            <h2 class="chart-title">产品类别销售分布</h2>
+        </div>
+        <div class="row">
+            <div class="col-md-6">
+                <canvas id="categoryQuantityChart"></canvas>
+            </div>
+            <div class="col-md-6">
+                <canvas id="categoryRevenueChart"></canvas>
+            </div>
+        </div>
+    </div>
+    
+    <script>
+        // 产品类别数量分布图
+        var categoryQuantityCtx = document.getElementById('categoryQuantityChart').getContext('2d');
+        var categoryQuantityChart = new Chart(categoryQuantityCtx, {
+            type: 'pie',
+            data: {
+                labels: <?php echo json_encode($categories); ?>,
+                datasets: [{
+                    data: <?php echo json_encode($quantities); ?>,
+                    backgroundColor: [
+                        'rgba(255, 99, 132, 0.7)',
+                        'rgba(54, 162, 235, 0.7)',
+                        'rgba(255, 206, 86, 0.7)',
+                        'rgba(75, 192, 192, 0.7)',
+                        'rgba(153, 102, 255, 0.7)',
+                        'rgba(255, 159, 64, 0.7)'
+                    ],
+                    borderWidth: 1
+                }]
+            },
+            options: {
+                responsive: true,
+                plugins: {
+                    legend: {
+                        position: 'bottom',
+                    },
+                    title: {
+                        display: true,
+                        text: '产品类别销售数量分布'
+                    }
+                }
+            }
+        });
+        
+        // 产品类别收入分布图
+        var categoryRevenueCtx = document.getElementById('categoryRevenueChart').getContext('2d');
+        var categoryRevenueChart = new Chart(categoryRevenueCtx, {
+            type: 'pie',
+            data: {
+                labels: <?php echo json_encode($categories); ?>,
+                datasets: [{
+                    data: <?php echo json_encode($revenues); ?>,
+                    backgroundColor: [
+                        'rgba(255, 99, 132, 0.7)',
+                        'rgba(54, 162, 235, 0.7)',
+                        'rgba(255, 206, 86, 0.7)',
+                        'rgba(75, 192, 192, 0.7)',
+                        'rgba(153, 102, 255, 0.7)',
+                        'rgba(255, 159, 64, 0.7)'
+                    ],
+                    borderWidth: 1
+                }]
+            },
+            options: {
+                responsive: true,
+                plugins: {
+                    legend: {
+                        position: 'bottom',
+                    },
+                    title: {
+                        display: true,
+                        text: '产品类别销售收入分布'
+                    }
+                }
+            }
+        });
+    </script>
+    <?php
+}
+
+/**
+ * 渲染产品与地区关联分析表格
+ * 
+ * @param mysqli_result $product_region_data 产品与地区关联数据
+ * @return void
+ */
+function renderProductRegionAnalysisTable($product_region_data) {
+    ?>
+    <div class="chart-container">
+        <div class="chart-header">
+            <h2 class="chart-title">产品地区关联分析</h2>
+        </div>
+        <table class="data-table">
+            <thead>
+                <tr>
+                    <th>产品名称</th>
+                    <th>国家/地区</th>
+                    <th>销售数量</th>
+                    <th>销售收入</th>
+                </tr>
+            </thead>
+            <tbody>
+                <?php while ($row = $product_region_data->fetch_assoc()): ?>
+                <tr>
+                    <td><?php echo htmlspecialchars($row['ProductName']); ?></td>
+                    <td><?php echo htmlspecialchars($row['countryName']); ?></td>
+                    <td><?php echo number_format($row['total_quantity']); ?></td>
+                    <td>¥<?php echo number_format($row['total_revenue'], 2); ?></td>
+                </tr>
+                <?php endwhile; ?>
+            </tbody>
+        </table>
+    </div>
+    <?php
+}

statistics_region.php

@@ -0,0 +1,324 @@
+<?php
+/**
+ * 地区统计分析模块
+ * 
+ * 包含与地区相关的数据分析功能
+ */
+
+require_once 'statistics_utils.php';
+
+/**
+ * 获取客户国家分布
+ * 
+ * @param mysqli $conn 数据库连接
+ * @return mysqli_result 客户国家分布数据结果集
+ */
+function getCustomerCountryDistribution($conn) {
+    $sql = "SELECT 
+                c.countryName, 
+                COUNT(cu.id) as customer_count
+            FROM customer cu
+            JOIN country c ON cu.cs_country = c.id
+            GROUP BY cu.cs_country
+            ORDER BY customer_count DESC
+            LIMIT 10";
+    
+    return $conn->query($sql);
+}
+
+/**
+ * 获取不同地区的订单数量
+ * 
+ * @param mysqli $conn 数据库连接
+ * @param string $start_date 开始日期
+ * @param string $end_date 结束日期
+ * @return mysqli_result 地区订单数据结果集
+ */
+function getOrdersByRegion($conn, $start_date, $end_date) {
+    $sql = "SELECT 
+                c.countryName, 
+                COUNT(o.id) as order_count,
+                SUM(o.total_amount) as total_amount,
+                SUM(oi.quantity) as total_quantity
+            FROM orders o
+            JOIN customer cu ON o.customer_id = cu.id
+            JOIN country c ON cu.cs_country = c.id
+            LEFT JOIN order_items oi ON o.id = oi.order_id
+            WHERE o.order_date BETWEEN ? AND ?
+            GROUP BY cu.cs_country
+            ORDER BY total_quantity DESC
+            LIMIT 10";
+    
+    $stmt = $conn->prepare($sql);
+    $stmt->bind_param("ss", $start_date, $end_date);
+    $stmt->execute();
+    return $stmt->get_result();
+}
+
+/**
+ * 获取地区销售同比环比数据
+ * 
+ * @param mysqli $conn 数据库连接
+ * @param string $current_start 当前周期开始日期
+ * @param string $current_end 当前周期结束日期
+ * @return array 地区销售同比环比数据
+ */
+function getRegionSalesComparison($conn, $current_start, $current_end) {
+    // 计算上一个相同时长的周期
+    $current_start_date = new DateTime($current_start);
+    $current_end_date = new DateTime($current_end);
+    $interval = $current_start_date->diff($current_end_date);
+    
+    $prev_end_date = clone $current_start_date;
+    $prev_end_date->modify('-1 day');
+    $prev_start_date = clone $prev_end_date;
+    $prev_start_date->sub($interval);
+    
+    $prev_start = $prev_start_date->format('Y-m-d');
+    $prev_end = $prev_end_date->format('Y-m-d') . ' 23:59:59';
+    
+    // 获取当前周期数据
+    $sql = "SELECT 
+                c.countryName, 
+                COUNT(o.id) as order_count,
+                SUM(o.total_amount) as total_amount
+            FROM orders o
+            JOIN customer cu ON o.customer_id = cu.id
+            JOIN country c ON cu.cs_country = c.id
+            WHERE o.order_date BETWEEN ? AND ?
+            GROUP BY cu.cs_country
+            ORDER BY total_amount DESC
+            LIMIT 5";
+    
+    $stmt = $conn->prepare($sql);
+    $stmt->bind_param("ss", $current_start, $current_end);
+    $stmt->execute();
+    $current_result = $stmt->get_result();
+    
+    $current_data = [];
+    while ($row = $current_result->fetch_assoc()) {
+        $current_data[$row['countryName']] = [
+            'order_count' => $row['order_count'],
+            'total_amount' => $row['total_amount']
+        ];
+    }
+    
+    // 获取上一个周期数据
+    $stmt = $conn->prepare($sql);
+    $stmt->bind_param("ss", $prev_start, $prev_end);
+    $stmt->execute();
+    $prev_result = $stmt->get_result();
+    
+    $prev_data = [];
+    while ($row = $prev_result->fetch_assoc()) {
+        $prev_data[$row['countryName']] = [
+            'order_count' => $row['order_count'],
+            'total_amount' => $row['total_amount']
+        ];
+    }
+    
+    // 计算同比变化
+    $comparison_data = [];
+    foreach ($current_data as $country => $current) {
+        $prev = $prev_data[$country] ?? ['order_count' => 0, 'total_amount' => 0];
+        
+        $order_growth = $prev['order_count'] > 0 
+            ? (($current['order_count'] - $prev['order_count']) / $prev['order_count']) * 100 
+            : 100;
+            
+        $amount_growth = $prev['total_amount'] > 0 
+            ? (($current['total_amount'] - $prev['total_amount']) / $prev['total_amount']) * 100 
+            : 100;
+            
+        $comparison_data[] = [
+            'countryName' => $country,
+            'current_orders' => $current['order_count'],
+            'prev_orders' => $prev['order_count'],
+            'order_growth' => $order_growth,
+            'current_amount' => $current['total_amount'],
+            'prev_amount' => $prev['total_amount'],
+            'amount_growth' => $amount_growth
+        ];
+    }
+    
+    return $comparison_data;
+}
+
+/**
+ * 渲染客户国家分布图
+ * 
+ * @param array $country_labels 国家标签
+ * @param array $country_data 国家数据
+ * @return void
+ */
+function renderCustomerCountryDistributionChart($country_labels, $country_data) {
+    ?>
+    <div class="chart-container">
+        <div class="chart-header">
+            <h2 class="chart-title">客户国家分布</h2>
+        </div>
+        <canvas id="countryDistributionChart"></canvas>
+    </div>
+    
+    <script>
+        // 客户国家分布图
+        var countryDistributionCtx = document.getElementById('countryDistributionChart').getContext('2d');
+        var countryDistributionChart = new Chart(countryDistributionCtx, {
+            type: 'pie',
+            data: {
+                labels: <?php echo json_encode($country_labels); ?>,
+                datasets: [{
+                    data: <?php echo json_encode($country_data); ?>,
+                    backgroundColor: [
+                        'rgba(255, 99, 132, 0.7)',
+                        'rgba(54, 162, 235, 0.7)',
+                        'rgba(255, 206, 86, 0.7)',
+                        'rgba(75, 192, 192, 0.7)',
+                        'rgba(153, 102, 255, 0.7)',
+                        'rgba(255, 159, 64, 0.7)',
+                        'rgba(199, 199, 199, 0.7)',
+                        'rgba(83, 102, 255, 0.7)',
+                        'rgba(40, 159, 64, 0.7)',
+                        'rgba(210, 199, 199, 0.7)'
+                    ],
+                    borderWidth: 1
+                }]
+            },
+            options: {
+                responsive: true,
+                plugins: {
+                    legend: {
+                        position: 'right',
+                    }
+                }
+            }
+        });
+    </script>
+    <?php
+}
+
+/**
+ * 渲染地区订单分析图
+ * 
+ * @param array $region_labels 地区标签
+ * @param array $region_orders 地区订单数量
+ * @param array $region_quantities 地区产品数量
+ * @return void
+ */
+function renderRegionOrdersChart($region_labels, $region_orders, $region_quantities) {
+    ?>
+    <div class="chart-container">
+        <div class="chart-header">
+            <h2 class="chart-title">地区订单分析</h2>
+        </div>
+        <canvas id="regionOrdersChart"></canvas>
+    </div>
+    
+    <script>
+        // 地区订单分析图
+        var regionOrdersCtx = document.getElementById('regionOrdersChart').getContext('2d');
+        var regionOrdersChart = new Chart(regionOrdersCtx, {
+            type: 'bar',
+            data: {
+                labels: <?php echo json_encode($region_labels); ?>,
+                datasets: [
+                    {
+                        label: '订单数量',
+                        data: <?php echo json_encode($region_orders); ?>,
+                        backgroundColor: 'rgba(54, 162, 235, 0.6)',
+                        borderColor: 'rgba(54, 162, 235, 1)',
+                        borderWidth: 1,
+                        yAxisID: 'y-orders'
+                    },
+                    {
+                        label: '产品订购数量',
+                        data: <?php echo json_encode($region_quantities); ?>,
+                        backgroundColor: 'rgba(255, 99, 132, 0.6)',
+                        borderColor: 'rgba(255, 99, 132, 1)',
+                        borderWidth: 1,
+                        yAxisID: 'y-quantity'
+                    }
+                ]
+            },
+            options: {
+                responsive: true,
+                scales: {
+                    x: {
+                        title: {
+                            display: true,
+                            text: '地区'
+                        }
+                    },
+                    'y-orders': {
+                        type: 'linear',
+                        position: 'left',
+                        title: {
+                            display: true,
+                            text: '订单数量'
+                        },
+                        beginAtZero: true
+                    },
+                    'y-quantity': {
+                        type: 'linear',
+                        position: 'right',
+                        title: {
+                            display: true,
+                            text: '产品订购数量'
+                        },
+                        beginAtZero: true,
+                        grid: {
+                            drawOnChartArea: false
+                        }
+                    }
+                }
+            }
+        });
+    </script>
+    <?php
+}
+
+/**
+ * 渲染地区销售同比环比表格
+ * 
+ * @param array $comparison_data 比较数据
+ * @return void
+ */
+function renderRegionSalesComparisonTable($comparison_data) {
+    ?>
+    <div class="chart-container">
+        <div class="chart-header">
+            <h2 class="chart-title">地区销售同比分析</h2>
+        </div>
+        <table class="data-table">
+            <thead>
+                <tr>
+                    <th>国家/地区</th>
+                    <th>当前订单数</th>
+                    <th>上期订单数</th>
+                    <th>订单增长率</th>
+                    <th>当前销售额</th>
+                    <th>上期销售额</th>
+                    <th>销售额增长率</th>
+                </tr>
+            </thead>
+            <tbody>
+                <?php foreach ($comparison_data as $row): ?>
+                <tr>
+                    <td><?php echo htmlspecialchars($row['countryName']); ?></td>
+                    <td><?php echo number_format($row['current_orders']); ?></td>
+                    <td><?php echo number_format($row['prev_orders']); ?></td>
+                    <td class="<?php echo $row['order_growth'] >= 0 ? 'positive' : 'negative'; ?>">
+                        <?php echo number_format($row['order_growth'], 2); ?>%
+                    </td>
+                    <td>¥<?php echo number_format($row['current_amount'], 2); ?></td>
+                    <td>¥<?php echo number_format($row['prev_amount'], 2); ?></td>
+                    <td class="<?php echo $row['amount_growth'] >= 0 ? 'positive' : 'negative'; ?>">
+                        <?php echo number_format($row['amount_growth'], 2); ?>%
+                    </td>
+                </tr>
+                <?php endforeach; ?>
+            </tbody>
+        </table>
+    </div>
+    <?php
+} 

statistics_sales.php

@@ -0,0 +1,276 @@
+<?php
+/**
+ * 销售统计分析模块
+ * 
+ * 包含与销售相关的数据分析功能
+ */
+
+require_once 'statistics_utils.php';
+
+/**
+ * 获取销售概览数据
+ * 
+ * @param mysqli $conn 数据库连接
+ * @param string $start_date 开始日期
+ * @param string $end_date 结束日期
+ * @return array 销售概览数据
+ */
+function getSalesOverview($conn, $start_date, $end_date) {
+    $sql = "SELECT 
+                COUNT(id) as total_orders,
+                SUM(total_amount) as total_revenue,
+                AVG(total_amount) as avg_order_value
+            FROM orders 
+            WHERE order_date BETWEEN ? AND ?";
+    
+    $stmt = $conn->prepare($sql);
+    $stmt->bind_param("ss", $start_date, $end_date);
+    $stmt->execute();
+    $result = $stmt->get_result();
+    return $result->fetch_assoc();
+}
+
+/**
+ * 获取每月销售趋势
+ * 
+ * @param mysqli $conn 数据库连接
+ * @param string $start_date 开始日期
+ * @param string $end_date 结束日期
+ * @return mysqli_result 月度销售数据结果集
+ */
+function getMonthlySalesTrend($conn, $start_date, $end_date) {
+    $sql = "SELECT 
+                DATE_FORMAT(order_date, '%Y-%m') as month,
+                COUNT(id) as orders,
+                SUM(total_amount) as revenue
+            FROM orders 
+            WHERE order_date BETWEEN ? AND ?
+            GROUP BY DATE_FORMAT(order_date, '%Y-%m')
+            ORDER BY month";
+    
+    $stmt = $conn->prepare($sql);
+    $stmt->bind_param("ss", $start_date, $end_date);
+    $stmt->execute();
+    return $stmt->get_result();
+}
+
+/**
+ * 获取详细时间段订单趋势
+ * 
+ * @param mysqli $conn 数据库连接
+ * @param string $start_date 开始日期
+ * @param string $end_date 结束日期
+ * @param string $period 时间粒度 (day/week/month)
+ * @return mysqli_result 订单趋势数据结果集
+ */
+function getDetailedOrderTrend($conn, $start_date, $end_date, $period = 'day') {
+    $groupFormat = '%Y-%m-%d';
+    $intervalUnit = 'DAY';
+    
+    if ($period == 'week') {
+        $groupFormat = '%x-W%v'; // ISO year and week number
+        $intervalUnit = 'WEEK';
+    } else if ($period == 'month') {
+        $groupFormat = '%Y-%m';
+        $intervalUnit = 'MONTH';
+    }
+    
+    $sql = "SELECT 
+                DATE_FORMAT(o.order_date, '$groupFormat') as time_period,
+                COUNT(o.id) as order_count,
+                SUM(oi.quantity) as total_quantity,
+                SUM(o.total_amount) as total_amount
+            FROM orders o
+            LEFT JOIN order_items oi ON o.id = oi.order_id
+            WHERE o.order_date BETWEEN ? AND ?
+            GROUP BY time_period
+            ORDER BY MIN(o.order_date)";
+    
+    $stmt = $conn->prepare($sql);
+    $stmt->bind_param("ss", $start_date, $end_date);
+    $stmt->execute();
+    return $stmt->get_result();
+}
+
+/**
+ * 渲染销售概览卡片
+ * 
+ * @param array $sales_overview 销售概览数据
+ * @return void
+ */
+function renderSalesOverviewCards($sales_overview) {
+    ?>
+    <div class="stats-grid">
+        <div class="stat-card">
+            <h3>总订单数</h3>
+            <div class="stat-value"><?php echo number_format($sales_overview['total_orders']); ?></div>
+        </div>
+        
+        <div class="stat-card">
+            <h3>总收入</h3>
+            <div class="stat-value">¥<?php echo number_format($sales_overview['total_revenue'], 2); ?></div>
+        </div>
+        
+        <div class="stat-card">
+            <h3>平均订单金额</h3>
+            <div class="stat-value">¥<?php echo number_format($sales_overview['avg_order_value'], 2); ?></div>
+        </div>
+    </div>
+    <?php
+}
+
+/**
+ * 渲染月度销售趋势图
+ * 
+ * @param array $monthly_labels 月份标签
+ * @param array $monthly_orders 月度订单数量
+ * @param array $monthly_revenue 月度收入
+ * @return void
+ */
+function renderMonthlySalesTrendChart($monthly_labels, $monthly_orders, $monthly_revenue) {
+    ?>
+    <div class="chart-container">
+        <div class="chart-header">
+            <h2 class="chart-title">销售趋势</h2>
+        </div>
+        <canvas id="salesTrendChart"></canvas>
+    </div>
+    
+    <script>
+        // 销售趋势图
+        var salesTrendCtx = document.getElementById('salesTrendChart').getContext('2d');
+        var salesTrendChart = new Chart(salesTrendCtx, {
+            type: 'line',
+            data: {
+                labels: <?php echo json_encode($monthly_labels); ?>,
+                datasets: [
+                    {
+                        label: '订单数量',
+                        data: <?php echo json_encode($monthly_orders); ?>,
+                        backgroundColor: 'rgba(54, 162, 235, 0.2)',
+                        borderColor: 'rgba(54, 162, 235, 1)',
+                        borderWidth: 2,
+                        yAxisID: 'y-orders'
+                    },
+                    {
+                        label: '销售收入',
+                        data: <?php echo json_encode($monthly_revenue); ?>,
+                        backgroundColor: 'rgba(255, 99, 132, 0.2)',
+                        borderColor: 'rgba(255, 99, 132, 1)',
+                        borderWidth: 2,
+                        yAxisID: 'y-revenue'
+                    }
+                ]
+            },
+            options: {
+                responsive: true,
+                scales: {
+                    'y-orders': {
+                        type: 'linear',
+                        position: 'left',
+                        title: {
+                            display: true,
+                            text: '订单数量'
+                        }
+                    },
+                    'y-revenue': {
+                        type: 'linear',
+                        position: 'right',
+                        title: {
+                            display: true,
+                            text: '销售收入'
+                        },
+                        grid: {
+                            drawOnChartArea: false
+                        }
+                    }
+                }
+            }
+        });
+    </script>
+    <?php
+}
+
+/**
+ * 渲染详细订单趋势图
+ * 
+ * @param array $time_labels 时间标签
+ * @param array $time_orders 时间段订单数量
+ * @param array $time_quantities 时间段产品数量
+ * @param string $period 时间粒度
+ * @return void
+ */
+function renderDetailedOrderTrendChart($time_labels, $time_orders, $time_quantities, $period = 'day') {
+    $period_text = $period == 'day' ? '日' : ($period == 'week' ? '周' : '月');
+    ?>
+    <div class="chart-container">
+        <div class="chart-header">
+            <h2 class="chart-title">详细订单趋势 (<?php echo $period_text; ?>)</h2>
+        </div>
+        <canvas id="detailedOrdersChart"></canvas>
+    </div>
+    
+    <script>
+        // 详细时间段订单趋势图
+        var detailedOrdersCtx = document.getElementById('detailedOrdersChart').getContext('2d');
+        var detailedOrdersChart = new Chart(detailedOrdersCtx, {
+            type: 'line',
+            data: {
+                labels: <?php echo json_encode($time_labels); ?>,
+                datasets: [
+                    {
+                        label: '订单数量',
+                        data: <?php echo json_encode($time_orders); ?>,
+                        backgroundColor: 'rgba(75, 192, 192, 0.2)',
+                        borderColor: 'rgba(75, 192, 192, 1)',
+                        borderWidth: 2,
+                        yAxisID: 'y-orders',
+                        tension: 0.1
+                    },
+                    {
+                        label: '产品订购数量',
+                        data: <?php echo json_encode($time_quantities); ?>,
+                        backgroundColor: 'rgba(255, 159, 64, 0.2)',
+                        borderColor: 'rgba(255, 159, 64, 1)',
+                        borderWidth: 2,
+                        yAxisID: 'y-quantity',
+                        tension: 0.1
+                    }
+                ]
+            },
+            options: {
+                responsive: true,
+                scales: {
+                    x: {
+                        title: {
+                            display: true,
+                            text: '时间'
+                        }
+                    },
+                    'y-orders': {
+                        type: 'linear',
+                        position: 'left',
+                        title: {
+                            display: true,
+                            text: '订单数量'
+                        },
+                        beginAtZero: true
+                    },
+                    'y-quantity': {
+                        type: 'linear',
+                        position: 'right',
+                        title: {
+                            display: true,
+                            text: '产品订购数量'
+                        },
+                        beginAtZero: true,
+                        grid: {
+                            drawOnChartArea: false
+                        }
+                    }
+                }
+            }
+        });
+    </script>
+    <?php
+} 

statistics_utils.php

@@ -0,0 +1,129 @@
+<?php
+/**
+ * 统计分析工具函数
+ * 
+ * 包含所有统计模块共用的工具函数和日期处理逻辑
+ */
+
+// 确保直接访问时需要先登录
+require_once 'conn.php';
+
+if (!isset($_SESSION['employee_id'])) {
+    checkLogin();
+}
+
+/**
+ * 获取和处理日期范围参数
+ * 
+ * @return array 包含开始日期、结束日期和其他日期相关参数
+ */
+function getDateRangeParams() {
+    // 计算日期范围
+    $current_month_start = date('Y-m-01');
+    $current_month_end = date('Y-m-t');
+    $last_month_start = date('Y-m-01', strtotime('-1 month'));
+    $last_month_end = date('Y-m-t', strtotime('-1 month'));
+    $current_year_start = date('Y-01-01');
+    $current_year_end = date('Y-12-31');
+
+    // 可选的日期范围筛选
+    $date_range = isset($_GET['date_range']) ? $_GET['date_range'] : 'current_month';
+    $custom_start = isset($_GET['start_date']) ? $_GET['start_date'] : '';
+    $custom_end = isset($_GET['end_date']) ? $_GET['end_date'] : '';
+    $period = isset($_GET['period']) ? $_GET['period'] : 'day';
+
+    // 设置日期范围
+    if ($date_range == 'custom' && !empty($custom_start) && !empty($custom_end)) {
+        $start_date = $custom_start;
+        $end_date = $custom_end;
+    } else {
+        switch ($date_range) {
+            case 'last_month':
+                $start_date = $last_month_start;
+                $end_date = $last_month_end;
+                break;
+            case 'current_year':
+                $start_date = $current_year_start;
+                $end_date = $current_year_end;
+                break;
+            case 'last_30_days':
+                $start_date = date('Y-m-d', strtotime('-30 days'));
+                $end_date = date('Y-m-d');
+                break;
+            case 'last_90_days':
+                $start_date = date('Y-m-d', strtotime('-90 days'));
+                $end_date = date('Y-m-d');
+                break;
+            case 'current_month':
+            default:
+                $start_date = $current_month_start;
+                $end_date = $current_month_end;
+                break;
+        }
+    }
+
+    // 格式化日期用于SQL查询
+    $start_date_sql = date('Y-m-d', strtotime($start_date));
+    $end_date_sql = date('Y-m-d', strtotime($end_date)) . ' 23:59:59';
+
+    return [
+        'date_range' => $date_range,
+        'custom_start' => $custom_start,
+        'custom_end' => $custom_end,
+        'period' => $period,
+        'start_date' => $start_date,
+        'end_date' => $end_date,
+        'start_date_sql' => $start_date_sql,
+        'end_date_sql' => $end_date_sql
+    ];
+}
+
+/**
+ * 生成图表颜色数组
+ * 
+ * @param int $count 需要的颜色数量
+ * @param bool $transparent 是否透明
+ * @return array 背景色和边框色数组
+ */
+function generateChartColors($count = 10, $transparent = true) {
+    $colors = [
+        ['rgba(255, 99, 132, ' . ($transparent ? '0.7' : '1') . ')', 'rgba(255, 99, 132, 1)'],
+        ['rgba(54, 162, 235, ' . ($transparent ? '0.7' : '1') . ')', 'rgba(54, 162, 235, 1)'],
+        ['rgba(255, 206, 86, ' . ($transparent ? '0.7' : '1') . ')', 'rgba(255, 206, 86, 1)'],
+        ['rgba(75, 192, 192, ' . ($transparent ? '0.7' : '1') . ')', 'rgba(75, 192, 192, 1)'],
+        ['rgba(153, 102, 255, ' . ($transparent ? '0.7' : '1') . ')', 'rgba(153, 102, 255, 1)'],
+        ['rgba(255, 159, 64, ' . ($transparent ? '0.7' : '1') . ')', 'rgba(255, 159, 64, 1)'],
+        ['rgba(199, 199, 199, ' . ($transparent ? '0.7' : '1') . ')', 'rgba(199, 199, 199, 1)'],
+        ['rgba(83, 102, 255, ' . ($transparent ? '0.7' : '1') . ')', 'rgba(83, 102, 255, 1)'],
+        ['rgba(40, 159, 64, ' . ($transparent ? '0.7' : '1') . ')', 'rgba(40, 159, 64, 1)'],
+        ['rgba(210, 199, 199, ' . ($transparent ? '0.7' : '1') . ')', 'rgba(210, 199, 199, 1)']
+    ];
+    
+    $result = [];
+    
+    // 确保有足够的颜色
+    while (count($result) < $count) {
+        foreach ($colors as $color) {
+            $result[] = $color;
+            if (count($result) >= $count) {
+                break;
+            }
+        }
+    }
+    
+    return array_slice($result, 0, $count);
+}
+
+/**
+ * 格式化数值，处理空值和小数位数
+ * 
+ * @param mixed $value 要格式化的值
+ * @param int $decimals 小数位数
+ * @return string 格式化后的数值
+ */
+function formatNumber($value, $decimals = 2) {
+    if ($value === null || $value === '') {
+        return '0';
+    }
+    return number_format((float)$value, $decimals);
+}