original_string: public function getQueryString()
      {
          $query_string = '';
          if (count($this->query_string) > 0) {
              $query_string .= http_build_query($this->query_string);
          }
          if ($this->method != 'POST') {
              if (count($this->data) > 0) {
                  $query_string .= http_build_query($this->data);
              }
          }
          if (mb_strlen($query_string) > 0) {
              $query_string = (mb_strpos($this->url, '?') ? '&' : '?') . $query_string;
          }
  
          return $query_string;
      }
code: public function getQueryString()
      {
          $query_string = '';
          if (count($this->query_string) > 0) {
              $query_string .= http_build_query($this->query_string);
          }
          if ($this->method != 'POST') {
              if (count($this->data) > 0) {
                  $query_string .= http_build_query($this->data);
              }
          }
          if (mb_strlen($query_string) > 0) {
              $query_string = (mb_strpos($this->url, '?') ? '&' : '?') . $query_string;
          }
  
          return $query_string;
      }
code_tokens: public function getQueryString ( ) { $ query_string = '' ; if ( count ( $ this -> query_string ) > 0 ) { $ query_string .= http_build_query ( $ this -> query_string ) ; } if ( $ this -> method != 'POST' ) { if ( count ( $ this -> data ) > 0 ) { $ query_string .= http_build_query ( $ this -> data ) ; } } if ( mb_strlen ( $ query_string ) > 0 ) { $ query_string = ( mb_strpos ( $ this -> url , '?' ) ? '&' : '?' ) . $ query_string ; } return $ query_string ; }
docstring: Get the query string by merging any supplied string
  with that of the generated components.
  
  @return string The query string
  
  @author: 713uk13m <dev@nguyenanhung.com>
  @time  : 10/7/18 02:19
docstring_tokens: Get the query string by merging any supplied string with that of the generated components .