PHP FormLib::queryStringToJSON示例

 function body_content()
 {
     if (!empty($this->results)) {
         $str = filter_input(INPUT_SERVER, 'QUERY_STRING');
         $json = FormLib::queryStringToJSON($str);
         $this->results .= '
             <p>
                 <button type="button" class="btn btn-default"
                     onclick="location=\'ReprintReceiptPage.php\';">New Search</button>
                 <a href="?json=' . base64_encode($json) . '" class="btn btn-default btn-reset">
                     Adjust Search</a>
             </p>';
         return $this->results;
     } else {
         return $this->form_content();
     }
 }