original_string: public function calculateHash()
      {
          $answerModel = $this->getAnswerModel('en');
          foreach($answerModel->getItemsOrdered() as $item) {
                  $result = $answerModel->get($item, ['label', 'type', 'multiOptions', 'parent_question', 'thClass', 'group', 'description']);
                  if (array_key_exists('label', $result)) {
                      $items[$item] = $result;
                  }
          }
  
          $hash = md5(serialize($items));
          
          return $hash;
      }
code: public function calculateHash()
      {
          $answerModel = $this->getAnswerModel('en');
          foreach($answerModel->getItemsOrdered() as $item) {
                  $result = $answerModel->get($item, ['label', 'type', 'multiOptions', 'parent_question', 'thClass', 'group', 'description']);
                  if (array_key_exists('label', $result)) {
                      $items[$item] = $result;
                  }
          }
  
          $hash = md5(serialize($items));
          
          return $hash;
      }
code_tokens: public function calculateHash ( ) { $ answerModel = $ this -> getAnswerModel ( 'en' ) ; foreach ( $ answerModel -> getItemsOrdered ( ) as $ item ) { $ result = $ answerModel -> get ( $ item , [ 'label' , 'type' , 'multiOptions' , 'parent_question' , 'thClass' , 'group' , 'description' ] ) ; if ( array_key_exists ( 'label' , $ result ) ) { $ items [ $ item ] = $ result ; } } $ hash = md5 ( serialize ( $ items ) ) ; return $ hash ; }
docstring: Calculate a hash for this survey, taking into account the questions and answers
  
  @return string
docstring_tokens: Calculate a hash for this survey taking into account the questions and answers