From a980eb7a1c8ca647cf2c95f55fd0730b7e5560aa Mon Sep 17 00:00:00 2001
From: Leonmmcoset <testmod@qq.com>
Date: Tue, 8 Jul 2025 19:21:54 +0800
Subject: [PATCH] =?UTF-8?q?feat(=E5=BA=94=E7=94=A8=E7=AE=A1=E7=90=86):=20?=
 =?UTF-8?q?=E5=AE=9E=E7=8E=B0=E5=BA=94=E7=94=A8=E5=AE=A1=E6=A0=B8=E7=8A=B6?=
 =?UTF-8?q?=E6=80=81=E5=92=8C=E6=97=A5=E5=BF=97=E7=B3=BB=E7=BB=9F?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

- 在app_store.sql中添加应用审核状态字段
- 重构日志系统到单独文件并实现日志分级
- 改进开发者注册和上传应用的错误处理和日志记录
- 为应用详情页添加评价分页加载功能
- 更新SMTP配置并增强邮件发送调试能力
---
 app.php                  | 119 ++++++++++++++++++++++++++++++++-------
 app_store.sql            |   5 +-
 config.php               |  23 +++-----
 developer/register.php   |  62 ++++++++++++++++----
 developer/upload_app.php |  49 +++++++++++++---
 includes/logger.php      |  56 ++++++++++++++++++
 6 files changed, 259 insertions(+), 55 deletions(-)
 create mode 100644 includes/logger.php

diff --git a/app.php b/app.php
index b6b9a91..aa9931c 100644
--- a/app.php
+++ b/app.php
@@ -28,6 +28,35 @@ if (!$app) {
     die("<h1>错误：应用不存在</h1><p>找不到ID为 $appId 的应用。请检查ID是否正确。</p>");
 }
 
+// 处理评价加载请求
+if (isset($_GET['action']) && $_GET['action'] === 'load_reviews') {
+    header('Content-Type: text/html; charset=UTF-8');
+    while ($review = $resultReviews->fetch_assoc()) {
+?>
+    <div class="card mb-3 blur-bg">
+        <div class="card-body">
+            <?php
+            $rating = $review['rating'] !== null ? $review['rating'] : 0;
+            echo '<p class="card-text">评分: ';
+            for ($i = 1; $i <= 5; $i++) {
+                if ($i <= floor($rating)) {
+                    echo '<span class="fas fa-star text-warning"></span>';
+                } elseif ($i - $rating <= 0.5) {
+                    echo '<span class="fas fa-star-half-alt text-warning"></span>';
+                } else {
+                    echo '<span class="far fa-star text-warning"></span>';
+                }
+            }
+            echo '</p>';
+            ?>
+            <p class="card-text"><small class="text-muted">评价时间: <?php echo $review['created_at']; ?></small></p>
+        </div>
+    </div>
+<?php
+    }
+    exit;
+}
+
 // 获取App版本信息
 $sqlVersions = "SELECT * FROM app_versions WHERE app_id = $appId ORDER BY created_at DESC"; 
 $resultVersions = $conn->query($sqlVersions);
@@ -36,8 +65,19 @@ $resultVersions = $conn->query($sqlVersions);
 $sqlImages = "SELECT * FROM app_images WHERE app_id = $appId"; 
 $resultImages = $conn->query($sqlImages);
 
+// 获取评价总数
+$sqlReviewCount = "SELECT COUNT(*) as total FROM reviews WHERE app_id = $appId";
+$resultReviewCount = $conn->query($sqlReviewCount);
+$reviewCount = $resultReviewCount->fetch_assoc()['total'];
+
+// 分页参数
+$page = isset($_GET['page']) ? (int)$_GET['page'] : 1;
+$limit = 10;
+$offset = ($page - 1) * $limit;
+$hasMore = ($page * $limit) < $reviewCount;
+
 // 获取评价信息
-$sqlReviews = "SELECT * FROM reviews WHERE app_id = $appId ORDER BY created_at DESC"; 
+$sqlReviews = "SELECT * FROM reviews WHERE app_id = $appId ORDER BY created_at DESC LIMIT $limit OFFSET $offset"; 
 $resultReviews = $conn->query($sqlReviews);
 
 // 获取评分分布
@@ -188,33 +228,72 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['rating'])) {
         <div class="row mt-4">
             <div class="col-md-6">
                     <h2>评价</h2>
-                    <?php while ($review = $resultReviews->fetch_assoc()): ?>
-                        <div class="card mb-3 blur-bg">
-                            <div class="card-body">
-                                <?php
-                                $rating = $review['rating'] !== null ? $review['rating'] : 0;
-                                echo '<p class="card-text">评分: ';
-                                for ($i = 1; $i <= 5; $i++) {
-                                    if ($i <= floor($rating)) {
-                                        echo '<span class="fas fa-star text-warning"></span>';
-                                    } elseif ($i - $rating <= 0.5) {
-                                        echo '<span class="fas fa-star-half-alt text-warning"></span>';
-                                    } else {
-                                        echo '<span class="far fa-star text-warning"></span>';
+                    <div id="reviews-container">
+                        <?php while ($review = $resultReviews->fetch_assoc()): ?>
+                            <div class="card mb-3 blur-bg">
+                                <div class="card-body">
+                                    <?php
+                                    $rating = $review['rating'] !== null ? $review['rating'] : 0;
+                                    echo '<p class="card-text">评分: ';
+                                    for ($i = 1; $i <= 5; $i++) {
+                                        if ($i <= floor($rating)) {
+                                            echo '<span class="fas fa-star text-warning"></span>';
+                                        } elseif ($i - $rating <= 0.5) {
+                                            echo '<span class="fas fa-star-half-alt text-warning"></span>';
+                                        } else {
+                                            echo '<span class="far fa-star text-warning"></span>';
+                                        }
                                     }
-                                }
-                                echo '</p>';
-                                ?>
-                                <p class="card-text"><small class="text-muted">评价时间: <?php echo $review['created_at']; ?></small></p>
+                                    echo '</p>';
+                                    ?>
+                                    <p class="card-text"><small class="text-muted">评价时间: <?php echo $review['created_at']; ?></small></p>
+                                </div>
                             </div>
-                        </div>
-                    <?php endwhile; ?>
+                        <?php endwhile; ?>
+                    </div>
+                    <?php if ($hasMore): ?>
+                        <button id="load-more" class="btn btn-secondary" data-page="<?php echo $page + 1; ?>">加载更多</button>
+                    <?php endif; ?>
                 </div>
                 <div class="col-md-6">
                     <h2>评分分布</h2>
                     <div id="ratingChartSkeleton" class="skeleton-chart"></div>
                     <canvas id="ratingChart" width="400" height="200"></canvas>
                     <script>
+                        // 加载更多评价功能
+                        document.addEventListener('DOMContentLoaded', function() {
+                            const loadMoreBtn = document.getElementById('load-more');
+                            if (loadMoreBtn) {
+                                loadMoreBtn.addEventListener('click', function() {
+                                    const button = this;
+                                    const page = button.getAttribute('data-page');
+                                    const appId = <?php echo $appId; ?>;
+                                    
+                                    button.innerHTML = '<i class="fas fa-spinner fa-spin"></i> 加载中...';
+                                    button.disabled = true;
+                                    
+                                    fetch(`app.php?id=${appId}&page=${page}&action=load_reviews`)
+                                        .then(response => response.text())
+                                        .then(html => {
+                                            if (html.trim() === '') {
+                                                button.style.display = 'none';
+                                                return;
+                                            }
+                                            document.getElementById('reviews-container').insertAdjacentHTML('beforeend', html);
+                                            button.setAttribute('data-page', parseInt(page) + 1);
+                                            button.innerHTML = '加载更多';
+                                            button.disabled = false;
+                                        })
+                                        .catch(error => {
+                                            console.error('加载评价失败:', error);
+                                            button.innerHTML = '加载更多';
+                                            button.disabled = false;
+                                        });
+                                });
+                            }
+                        });
+
+                        // 评分图表
                         const ctx = document.getElementById('ratingChart').getContext('2d');
                         new Chart(ctx).Bar({
                             labels: ['5星', '4星', '3星', '2星', '1星'],
diff --git a/app_store.sql b/app_store.sql
index e458620..9cf163c 100644
--- a/app_store.sql
+++ b/app_store.sql
@@ -14,9 +14,12 @@ CREATE TABLE IF NOT EXISTS apps (
     updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
     version VARCHAR(20) NOT NULL,
     changelog TEXT NOT NULL,
-    file_path VARCHAR(255) NOT NULL
+    file_path VARCHAR(255) NOT NULL,
+    status ENUM('pending', 'approved', 'rejected') DEFAULT 'pending'
 );
 
+-- 确保状态列存在（用于现有数据库）
+
 -- 创建APP版本表
 CREATE TABLE IF NOT EXISTS app_versions (
     id INT AUTO_INCREMENT PRIMARY KEY,
diff --git a/config.php b/config.php
index 663d171..f03be6a 100644
--- a/config.php
+++ b/config.php
@@ -10,11 +10,12 @@ define('APP_STORE_NAME', 'LeonAPP');
 
 // SMTP邮件配置
 define('SMTP_HOST', 'smtp.163.com');
-define('SMTP_PORT', 25);
-define('SMTP_USER', 'leonmmcoset@qq.com');
-define('SMTP_PASSWORD', 'CXaWtRdekFAabUWZ');
-define('SMTP_FROM', 'leonmmcoset@qq.com');
-define('SMTP_FROM_NAME', 'LeonAPP 验证系统');
+define('SMTP_PORT', 25); // 163邮箱推荐使用587端口
+define('SMTP_ENCRYPTION', 'tls'); // 启用TLS加密
+define('SMTP_USERNAME', 'leonmmcoset@163.com'); // 使用完整邮箱地址作为用户名
+define('SMTP_PASSWORD', 'YFgYVFn6ZaVY9qiV');
+define('SMTP_FROM_EMAIL', 'leonmmcoset@163.com');
+define('SMTP_FROM_NAME', 'leonmmcoset@163.com');
 
 // 管理员账号
 define('ADMIN_USERNAME', 'Admin');
@@ -33,15 +34,5 @@ $conn->set_charset('utf8mb4');
 date_default_timezone_set('Asia/Shanghai');
 
 // 错误日志记录函数
-function log_error($message, $file = '', $line = '') {
-    $log_entry = date('[Y-m-d H:i:s]') . ' Error: ' . $message;
-    if (!empty($file)) {
-        $log_entry .= ' in ' . $file;
-    }
-    if (!empty($line)) {
-        $log_entry .= ' on line ' . $line;
-    }
-    $log_entry .= "\n";
-    file_put_contents('d:\\app2\\logs\\error.log', $log_entry, FILE_APPEND);
-}
+
 ?>
\ No newline at end of file
diff --git a/developer/register.php b/developer/register.php
index 1b80f85..eb2f68d 100644
--- a/developer/register.php
+++ b/developer/register.php
@@ -1,8 +1,25 @@
 <?php
-// Define SMTP constants if not already defined
-if (!defined('SMTP_USERNAME')) define('SMTP_USERNAME', '');
-if (!defined('SMTP_ENCRYPTION')) define('SMTP_ENCRYPTION', 'tls');
-if (!defined('SMTP_FROM_EMAIL')) define('SMTP_FROM_EMAIL', 'noreply@example.com');
+// 引入配置文件
+// 检查配置文件是否存在并加载
+$configFile = 'd:\app2\config.php';
+if (!file_exists($configFile)) {
+    die('配置文件缺失: ' . $configFile . '，无法继续执行');
+}
+require_once $configFile;
+
+// 引入日志工具
+require_once 'd:\app2\includes\logger.php';
+
+// 配置文件加载后日志记录和常量检查
+log_error('配置文件已成功加载: ' . $configFile);
+// 验证关键常量是否定义
+log_error('配置加载后常量检查 - SMTP_HOST: ' . (defined('SMTP_HOST') ? SMTP_HOST : '未定义'));
+log_error('配置加载后常量检查 - SMTP_USERNAME: ' . (defined('SMTP_USERNAME') ? SMTP_USERNAME : '未定义'));
+log_error('配置加载后常量检查 - SMTP_PASSWORD: ' . (defined('SMTP_PASSWORD') ? '已设置' : '未定义'));
+log_error('配置加载后常量检查 - SMTP_PORT: ' . (defined('SMTP_PORT') ? SMTP_PORT : '未定义'));
+log_error('配置文件加载后 - SMTP_USERNAME: ' . (defined('SMTP_USERNAME') ? SMTP_USERNAME : '未定义') . ', SMTP_PORT: ' . (defined('SMTP_PORT') ? SMTP_PORT : '未定义'));
+
+
 
 
 // 引入PHPMailer命名空间
@@ -10,9 +27,6 @@ use PHPMailer\PHPMailer\PHPMailer;
 use PHPMailer\PHPMailer\SMTP;
 use PHPMailer\PHPMailer\Exception;
 
-// 引入配置文件
-require_once '../config.php';
-
 // 引入Composer自动加载器
 require_once '../vendor/autoload.php';
 
@@ -78,10 +92,11 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
                     // 生成验证令牌
                     $verificationToken = bin2hex(random_bytes(32));
                     $insertStmt = $conn->prepare('INSERT INTO developers (username, email, password, verification_token) VALUES (?, ?, ?, ?)');
-                    if (!$insertStmt) {
-                        log_error('插入准备失败: ' . $conn->error, __FILE__, __LINE__);
-                        $error = '系统错误，请稍后再试';
-                } else {
+                        $insertStmt->bind_param('ssss', $username, $email, $hashedPassword, $verificationToken);
+                        if (!$insertStmt->execute()) {
+                            log_error('插入执行失败: ' . $insertStmt->error, __FILE__, __LINE__);
+                            $error = '系统错误，请稍后再试';
+                        } else {
                         // 生成验证链接
                         $verificationLink = 'https://' . $_SERVER['HTTP_HOST'] . '/developer/verify_email.php?token=' . urlencode($verificationToken);
 
@@ -92,6 +107,18 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
                             $templateContent = str_replace('{username}', htmlspecialchars($username), $templateContent);
                             $templateContent = str_replace('{verification_link}', $verificationLink, $templateContent);
 
+                            // 调试日志测试
+                            $testLogDir = 'd:\\app2\\logs';
+                            $testLogFile = $testLogDir . '\\test.log';
+                            if (!is_dir($testLogDir)) {
+                                mkdir($testLogDir, 0755, true);
+                            }
+                            file_put_contents($testLogFile, date('[Y-m-d H:i:s] ') . '邮件发送代码开始执行' . PHP_EOL, FILE_APPEND);
+
+                            // 添加SMTP配置调试日志
+                            log_error('SMTP配置参数 - HOST: ' . (defined('SMTP_HOST') ? SMTP_HOST : '未定义') . ', PORT: ' . (defined('SMTP_PORT') ? SMTP_PORT : '未定义') . ', USERNAME: ' . (defined('SMTP_USERNAME') ? SMTP_USERNAME : '未定义') . ', ENCRYPTION: ' . (defined('SMTP_ENCRYPTION') ? SMTP_ENCRYPTION : '未定义'), __FILE__, __LINE__);
+                            log_error('开始执行邮件发送流程', __FILE__, __LINE__);
+
                             // 配置SMTP邮件发送
                             require_once '../vendor/phpmailer/phpmailer/src/PHPMailer.php';
                             require_once '../vendor/phpmailer/phpmailer/src/SMTP.php';
@@ -101,11 +128,24 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST') {
                             $mail = new \PHPMailer\PHPMailer\PHPMailer(true);
                             try {
                                 $mail->isSMTP();
+                                $mail->SMTPDebug = 4;
+// 输出当前SMTP配置参数用于调试
+log_error('SMTP配置参数: HOST=' . SMTP_HOST . ', PORT=' . SMTP_PORT . ', USERNAME=' . SMTP_USERNAME . ', ENCRYPTION=' . SMTP_ENCRYPTION);
+// 检查openssl扩展是否启用
+log_error('OpenSSL扩展状态: ' . (extension_loaded('openssl') ? '已启用' : '未启用')); // 启用详细调试
+                                $mail->Debugoutput = function($str, $level) {
+                                     $logDir = 'd:\\app2\\logs';
+                                     if (!is_dir($logDir)) {
+                                         mkdir($logDir, 0755, true);
+                                     }
+                                     file_put_contents($logDir . '\\smtp_debug.log', date('[Y-m-d H:i:s] ') . $str . PHP_EOL, FILE_APPEND);
+                                 };
                                 $mail->Host = defined('SMTP_HOST') ? SMTP_HOST : 'smtp.example.com';
                                 $mail->SMTPAuth = true;
                                 $mail->Username = defined('SMTP_USERNAME') ? SMTP_USERNAME : ''; // Ensure SMTP_USERNAME is defined in config.php
                                 $mail->Password = defined('SMTP_PASSWORD') ? SMTP_PASSWORD : '';
                                 $mail->SMTPSecure = defined('SMTP_ENCRYPTION') ? SMTP_ENCRYPTION : 'tls'; // Ensure SMTP_ENCRYPTION is defined in config.php
+$mail->AuthType = 'PLAIN'; // 尝试使用PLAIN认证方式
                                 $mail->Port = defined('SMTP_PORT') ? SMTP_PORT : 587;
 
                                 $mail->setFrom(defined('SMTP_FROM_EMAIL') ? SMTP_FROM_EMAIL : 'noreply@example.com', defined('SMTP_FROM_NAME') ? SMTP_FROM_NAME : 'App Store'); // Ensure SMTP_FROM_EMAIL is defined in config.php
diff --git a/developer/upload_app.php b/developer/upload_app.php
index 67a727b..94fa17d 100644
--- a/developer/upload_app.php
+++ b/developer/upload_app.php
@@ -1,16 +1,21 @@
 <?php
+require_once('../includes/logger.php');
+
 // 引入配置文件
 require_once '../config.php';
 
 session_start();
 
 // 检查开发者是否已登录
-if (!isset($_SESSION['developer_id'])) {
+if (!isset($_SESSION['developer_id']) || !is_numeric($_SESSION['developer_id'])) {
+    log_error('开发者会话ID不存在或无效', __FILE__, __LINE__);
     header('Location: login.php');
     exit;
 }
 
-$developerId = $_SESSION['developer_id'];
+$developerId = (int)$_SESSION['developer_id'];
+log_info("上传应用的开发者ID: $developerId", __FILE__, __LINE__);
+log_info("上传应用的开发者ID: $developerId", __FILE__, __LINE__);
 $error = '';
 $success = '';
 
@@ -26,7 +31,10 @@ if (!$stmt) {
     $developer = $result->fetch_assoc();
     $stmt->close();
 
-    if (!$developer || !$developer['is_verified']) {
+    log_info("开发者验证状态: " . ($developer ? ($developer['is_verified'] ? "已验证" : "未验证") : "开发者不存在"), __FILE__, __LINE__);
+    if (!$developer) {
+        $error = '开发者账号不存在，请重新登录。';
+    } elseif (!$developer['is_verified']) {
         $error = '您的邮箱尚未验证，请先验证邮箱后再上传应用。';
     }
 }
@@ -89,6 +97,29 @@ if (!($conn instanceof mysqli)) {
                             $error = '应用文件上传失败';
                         }
                     } else {
+            // 验证标签ID是否存在
+            if (!empty($tags)) {
+                $tagIds = implode(',', array_map('intval', $tags));
+                $tagCheckStmt = $conn->prepare("SELECT id FROM tags WHERE id IN ($tagIds)");
+                if (!$tagCheckStmt) {
+                    log_error('标签验证查询准备失败: ' . $conn->error, __FILE__, __LINE__);
+                    $error = '系统错误，请稍后再试';
+                } else {
+                    $tagCheckStmt->execute();
+                    $tagResult = $tagCheckStmt->get_result();
+                    $validTagIds = [];
+                    while ($tag = $tagResult->fetch_assoc()) {
+                        $validTagIds[] = $tag['id'];
+                    }
+                    $tagCheckStmt->close();
+                    
+                    $invalidTags = array_diff($tags, $validTagIds);
+                    if (!empty($invalidTags)) {
+                        log_error('无效的标签ID: ' . implode(',', $invalidTags), __FILE__, __LINE__);
+                        $error = '选择了无效的标签，请刷新页面重试';
+                    }
+                }
+            }
                         $error = '应用文件上传错误: ' . ($appFile ? $appFile['error'] : '未找到文件');
                     }
 
@@ -111,7 +142,7 @@ if (!($conn instanceof mysqli)) {
                 mkdir($target_dir, 0755, true);
             }
                     if (move_uploaded_file($tmpName, $imagePath)) {
-                        $imagePaths[] = $imagePath;
+                        $imagePaths[] = $imageRelativePath;
                     } else {
                         log_error('图片文件移动失败: ' . $images['name'][$key], __FILE__, __LINE__);
                     }
@@ -147,13 +178,15 @@ if (!($conn instanceof mysqli)) {
                 // 移除多余的$status参数，匹配SQL中9个占位符
                 // 修正age_rating_description类型为字符串，并确保9个参数与占位符匹配
                 // 修复变量名错误：使用已验证的$appFilePath替换未定义的$file_path
-                $stmt->bind_param('ssissssss', $appName, $appDescription, $developerId, $platforms_json, $ageRating, $ageRatingDescription, $version, $changelog, $filePath);
+                $stmt->bind_param('ssissssss', $appName, $appDescription, $developerId, $platforms_json, $ageRating, $ageRatingDescription, $version, $changelog, $appRelativePath);
                 if (!$stmt->execute()) {
                     throw new Exception('应用基本信息查询执行失败: ' . $stmt->error);
                 }
                 $appId = $stmt->insert_id;
+                log_info("应用已插入数据库: ID=$appId, 状态=pending", __FILE__, __LINE__);
                 $stmt->close();
 
+                log_info("开始处理应用关联数据: ID=$appId", __FILE__, __LINE__);
                 // 插入应用标签关联
                 foreach ($tags as $tagId) {
                     $tagStmt = $conn->prepare('INSERT INTO app_tags (app_id, tag_id) VALUES (?, ?)');
@@ -168,7 +201,7 @@ if (!($conn instanceof mysqli)) {
                 }
 
                 // 插入应用图片
-                foreach ($imagePaths as $imagePath) {
+                foreach ($imagePaths as $imageRelativePath) {
                     $imageStmt = $conn->prepare('INSERT INTO app_images (app_id, image_path) VALUES (?, ?)');
                     if (!$imageStmt) {
                         throw new Exception('图片关联查询准备失败: ' . $conn->error);
@@ -191,13 +224,15 @@ if (!($conn instanceof mysqli)) {
                 }
                 $versionStmt->close();
 
+                log_info("所有关联数据处理完成，准备提交事务: ID=$appId", __FILE__, __LINE__);
                 // 提交事务
                 $conn->commit();
+                log_info("应用上传成功: ID=$appId, 状态=pending", __FILE__, __LINE__);
                 $success = '应用上传成功，请等待管理员审核';
             } catch (Exception $e) {
                 // 回滚事务
                 $conn->rollback();
-                log_error('应用上传事务失败: ' . $e->getMessage(), __FILE__, __LINE__);
+                log_error('应用上传事务失败(ID=$appId): ' . $e->getMessage(), __FILE__, __LINE__);
                 $error = '上传应用时发生错误，请稍后再试';
             }
         }
diff --git a/includes/logger.php b/includes/logger.php
new file mode 100644
index 0000000..e52e47b
--- /dev/null
+++ b/includes/logger.php
@@ -0,0 +1,56 @@
+<?php
+/**
+ * Logging utility for the application
+ * Provides log_info() and log_error() functions
+ */
+
+if (!function_exists('log_info')) {
+    /**
+     * Log informational message
+     * @param string $message The message to log
+     * @param string $file Optional file name where the log was called
+     * @param int $line Optional line number where the log was called
+     */
+    function log_info($message, $file = '', $line = 0) {
+        $logFile = __DIR__ . '/../logs/app_' . date('Y-m-d') . '.log';
+        
+        // Create logs directory if it doesn't exist
+        if (!file_exists(dirname($logFile))) {
+            mkdir(dirname($logFile), 0755, true);
+        }
+        
+        $prefix = '[' . date('Y-m-d H:i:s') . '] [INFO]';
+        if (!empty($file) && $line > 0) {
+            $prefix .= ' [' . basename($file) . ':' . $line . ']';
+        }
+        
+        $logMessage = $prefix . ' ' . $message . PHP_EOL;
+        file_put_contents($logFile, $logMessage, FILE_APPEND);
+    }
+}
+
+if (!function_exists('log_error')) {
+    /**
+     * Log error message
+     * @param string $message The error message to log
+     * @param string $file Optional file name where the error occurred
+     * @param int $line Optional line number where the error occurred
+     */
+    function log_error($message, $file = '', $line = 0) {
+        $logFile = __DIR__ . '/../logs/error_' . date('Y-m-d') . '.log';
+        
+        // Create logs directory if it doesn't exist
+        if (!file_exists(dirname($logFile))) {
+            mkdir(dirname($logFile), 0755, true);
+        }
+        
+        $prefix = '[' . date('Y-m-d H:i:s') . '] [ERROR]';
+        if (!empty($file) && $line > 0) {
+            $prefix .= ' [' . basename($file) . ':' . $line . ']';
+        }
+        
+        $logMessage = $prefix . ' ' . $message . PHP_EOL;
+        file_put_contents($logFile, $logMessage, FILE_APPEND);
+    }
+}
+?>
\ No newline at end of file