'localhost', 'db_port' => '3306', 'db_name' => 'ser506580505755', 'db_user' => 'ser506580505755', 'db_pass' => 'NFXF3Axw764Q', 'api_key' => 'my_secure_api_key_123', ]; // ================= 2. 核心函数 ================= function getDb($cfg) { try { $dsn = "mysql:host={$cfg['db_host']};port={$cfg['db_port']};dbname={$cfg['db_name']};charset=utf8mb4"; $pdo = new PDO($dsn, $cfg['db_user'], $cfg['db_pass']); $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); return $pdo; } catch (PDOException $e) { return null; } } function ensureTable($pdo) { if (!$pdo) return false; try { $pdo->exec("CREATE TABLE IF NOT EXISTS links ( id INT AUTO_INCREMENT PRIMARY KEY, short_code VARCHAR(10) UNIQUE NOT NULL, original_url TEXT NOT NULL, created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP, clicks INT DEFAULT 0 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4"); return true; } catch (PDOException $e) { return false; } } function genCode($len = 6) { $chars = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; return substr(str_shuffle(str_repeat($chars, ceil($len / strlen($chars)))), 0, $len); } function saveLink($url, $code, $cfg) { $pdo = getDb($cfg); if (!$pdo) return false; if (!ensureTable($pdo)) return false; try { $stmt = $pdo->prepare("INSERT INTO links (short_code, original_url) VALUES (:c, :u)"); $stmt->execute([':c' => $code, ':u' => $url]); return true; } catch (PDOException $e) { if ($e->getCode() == 23000) return saveLink($url, genCode(), $cfg); return false; } } // ================= 3. 路由逻辑 ================= $path = parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH); $method = $_SERVER['REQUEST_METHOD']; $isApi = isset($_REQUEST['type']) && $_REQUEST['type'] === 'api'; // A. 短链接跳转: GET /{code} if ($method === 'GET' && preg_match('/^\/([a-zA-Z0-9]{6})$/', $path, $m)) { $pdo = getDb($config); if ($pdo && ensureTable($pdo)) { $stmt = $pdo->prepare("SELECT original_url FROM links WHERE short_code = :c"); $stmt->execute([':c' => $m]); // 注意取 $m $row = $stmt->fetch(PDO::FETCH_ASSOC); if ($row) { $pdo->prepare("UPDATE links SET clicks=clicks+1 WHERE short_code=:c")->execute([':c' => $m]); header("Location: " . $row['original_url'], true, 301); exit; } } http_response_code(404); echo "

404 Link Not Found

"; exit; } // B. API 生成: ?type=api if ($isApi) { header('Content-Type: application/json; charset=utf-8'); $key = $_SERVER['HTTP_X_API_KEY'] ?? ($_REQUEST['key'] ?? ''); if ($key !== $config['api_key']) { http_response_code(401); echo json_encode(['success'=>false, 'message'=>'Invalid Key']); exit; } $url = $_REQUEST['url'] ?? json_decode(file_get_contents('php://input'), true)['url'] ?? ''; if (!filter_var($url, FILTER_VALIDATE_URL)) { http_response_code(400); echo json_encode(['success'=>false, 'message'=>'Invalid URL']); exit; } $code = genCode(); if (saveLink($url, $code, $config)) { $proto = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS']==='on') ? "https" : "http"; $host = $_SERVER['HTTP_HOST']; echo json_encode(['success'=>true, 'short_code'=>$code, 'short_url'=>"$proto://$host/$code", 'original_url'=>$url]); } else { http_response_code(500); echo json_encode(['success'=>false, 'message'=>'Save Failed']); } exit; } // C. 网页表单提交: POST / if ($method === 'POST' && !$isApi) { $url = $_POST['url'] ?? ''; if (!filter_var($url, FILTER_VALIDATE_URL)) { echo ""; exit; } $code = genCode(); if (saveLink($url, $code, $config)) { $proto = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS']==='on') ? "https" : "http"; $host = $_SERVER['HTTP_HOST']; $shortUrl = "$proto://$host/$code"; // 自动复制脚本 echo << navigator.clipboard.writeText("$shortUrl").then(function() { alert("✅ 生成成功！链接已自动复制：\n$shortUrl"); window.location.href = "/"; }, function(err) { alert("✅ 生成成功！请手动复制：\n$shortUrl"); window.location.href = "/"; }); JS; } else { echo ""; } exit; } // D. 首页显示: GET / if ($method === 'GET' && ($path === '/' || $path === '/index.php')) { // 强制声明 HTML 类型，防止被当作文本显示 header('Content-Type: text/html; charset=utf-8'); $pdo = getDb($config); $dbOk = $pdo ? ensureTable($pdo) : false; $proto = (isset($_SERVER['HTTPS']) && $_SERVER['HTTPS']==='on') ? "https" : "http"; $host = $_SERVER['HTTP_HOST']; $statusMsg = $dbOk ? '' : '

⚠️ 数据库连接失败

'; ?> Glass Shortener

🔗 Glass Link

API 调用:

GET :///?type=api&key=&url=...