original_string: public function listColumns()
      {
          $fieldNames = array();
          $field = NULL;
          while ($field = mysqli_fetch_field($this->getResultId())) {
              $fieldNames[] = $field->name;
          }
  
          return $fieldNames;
      }
code: public function listColumns()
      {
          $fieldNames = array();
          $field = NULL;
          while ($field = mysqli_fetch_field($this->getResultId())) {
              $fieldNames[] = $field->name;
          }
  
          return $fieldNames;
      }
code_tokens: public function listColumns ( ) { $ fieldNames = array ( ) ; $ field = NULL ; while ( $ field = mysqli_fetch_field ( $ this -> getResultId ( ) ) ) { $ fieldNames [ ] = $ field -> name ; } return $ fieldNames ; }
docstring: Lists all columns in a result row
  
  @return array
docstring_tokens: Lists all columns in a result row