original_string: public function createGif()
      {
          $data = array();
          foreach ($this->data as $key => $item) {
              if ($item !== null) {
                  $data[$key] = $item;
              }
          }
          return $this->tracking = self::GA_URL . '?' . http_build_query($data);
      }
code: public function createGif()
      {
          $data = array();
          foreach ($this->data as $key => $item) {
              if ($item !== null) {
                  $data[$key] = $item;
              }
          }
          return $this->tracking = self::GA_URL . '?' . http_build_query($data);
      }
code_tokens: public function createGif ( ) { $ data = array ( ) ; foreach ( $ this -> data as $ key => $ item ) { if ( $ item !== null ) { $ data [ $ key ] = $ item ; } } return $ this -> tracking = self :: GA_URL . '?' . http_build_query ( $ data ) ; }
docstring: Create the GA callback url, aka the gif
  
  @return string
docstring_tokens: Create the GA callback url aka the gif