original_string: public function start()
      {
          $result = array();
          if(count($this->helper_callbacks) > 0){
              foreach($this->helper_callbacks as $callback){
                  $return_value = call_user_func_array($callback, array($this));
                  $result[] = $return_value;
              }
          }
          return $result;
      }
code: public function start()
      {
          $result = array();
          if(count($this->helper_callbacks) > 0){
              foreach($this->helper_callbacks as $callback){
                  $return_value = call_user_func_array($callback, array($this));
                  $result[] = $return_value;
              }
          }
          return $result;
      }
code_tokens: public function start ( ) { $ result = array ( ) ; if ( count ( $ this -> helper_callbacks ) > 0 ) { foreach ( $ this -> helper_callbacks as $ callback ) { $ return_value = call_user_func_array ( $ callback , array ( $ this ) ) ; $ result [ ] = $ return_value ; } } return $ result ; }
docstring: start this event
docstring_tokens: start this event