上传文件至 admin

admin/ajax_delete_image.php

@@ -0,0 +1,37 @@
+<?php
+require_once '../config.php';
+
+if (!isset($_SESSION['user_id']) || $_SESSION['username'] !== 'admin') {
+    echo json_encode(['success' => false, 'error' => '无权限']);
+    exit;
+}
+
+$input = json_decode(file_get_contents('php://input'), true);
+
+if ($input && isset($input['image_id'])) {
+    try {
+        // 先获取文件名以便删除物理文件
+        $stmt = $pdo->prepare("SELECT filename FROM images WHERE id = ?");
+        $stmt->execute([$input['image_id']]);
+        $image = $stmt->fetch(PDO::FETCH_ASSOC);
+        
+        if ($image) {
+            // 删除数据库记录（会级联删除关联的标签）
+            $stmt = $pdo->prepare("DELETE FROM images WHERE id = ?");
+            $stmt->execute([$input['image_id']]);
+            
+            // 删除物理文件
+            $file_path = '../uploads/' . $image['filename'];
+            if (file_exists($file_path)) {
+                unlink($file_path);
+            }
+        }
+        
+        echo json_encode(['success' => true]);
+    } catch(PDOException $e) {
+        echo json_encode(['success' => false, 'error' => $e->getMessage()]);
+    }
+} else {
+    echo json_encode(['success' => false, 'error' => '无效请求']);
+}
+?>