* @version 1.0.0 */ // Configuration $inputName = 'filedata'; // Form file field name $attachDir = 'system/u'; // Upload directory path $dirType = 2; // 1: by day, 2: by month, 3: by extension $maxAttachSize = 5242880; // Max file size (5MB) $allowedExt = ['txt', 'rar', 'zip', 'jpg', 'jpeg', 'gif', 'png', 'swf', 'wmv', 'avi', 'wma', 'mp3', 'mid', 'pdf']; $msgType = 2; // Return format: 1 = only URL, 2 = parameter array $immediate = $_GET['immediate'] ?? '0'; $err = ''; $msg = "''"; // Check if file was uploaded if (!isset($_FILES[$inputName])) { $err = "无数据提交"; } else { $file = $_FILES[$inputName]; // Check file size if ($file['size'] > $maxAttachSize) { $err = "文件大小超过 " . $maxAttachSize . "字节"; } else { // Get file extension $extension = strtolower(pathinfo($file['name'], PATHINFO_EXTENSION)); // Check if extension is allowed if (!in_array($extension, $allowedExt)) { $err = "上传文件扩展名必需为：" . implode(',', $allowedExt); } else { // Create subdirectory based on dirType switch ($dirType) { case 1: $attachSubdir = "day_" . date('ymd'); break; case 2: $attachSubdir = "m" . date('ym'); break; case 3: $attachSubdir = "ext_" . $extension; break; } $attachPath = $attachDir . '/' . $attachSubdir; // Create directory if it doesn't exist if (!file_exists($attachPath)) { mkdir($attachPath, 0777, true); } // Generate random filename $filename = date('dHis') . rand(10000, 99999) . '.' . $extension; $target = $attachPath . '/' . $filename; // Move uploaded file if (move_uploaded_file($file['tmp_name'], $target)) { $imgurl = $target; $target = str_replace('\\', '/', $target); if ($immediate == "1") { $target = "!" . $target; } if ($msgType == 1) { $msg = "'" . $target . "'"; } else { $msg = "{ 'url': '/" . $target . "', 'localname': '" . addslashes($file['name']) . "', 'id': '1' }"; } } else { $err = "文件上传失败"; } } } } // Output response if (isset($_GET['act']) && $_GET['act'] == 's') { echo ""; } else { echo "{'err':'" . addslashes($err) . "','msg':" . $msg . "}"; }