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// search.phpͷ session_start(); $ip = $_SERVER['REMOTE_ADDR']; $key = 'search_limit_' . $ip; $limit = 3; $timeWindow = 10; if (!isset($_SESSION[$key])) { $_SESSION[$key] = ['count' => 1, 'first_request' => time()]; } else { $data = $_SESSION[$key]; if (time() - $data['first_request'] <= $timeWindow) { $data['count']++; if ($data['count'] > $limit) { http_response_code(429); die('ƵԺ'); } } else { $data = ['count' => 1, 'first_request' => time()]; } $_SESSION[$key] = $data; }