original_string: private function _listify($lookup)
      {
          $list = array();
          foreach ($lookup as $name => $b) {
              $list[] = $name;
          }
          return implode(', ', $list);
      }
code: private function _listify($lookup)
      {
          $list = array();
          foreach ($lookup as $name => $b) {
              $list[] = $name;
          }
          return implode(', ', $list);
      }
code_tokens: private function _listify ( $ lookup ) { $ list = array ( ) ; foreach ( $ lookup as $ name => $ b ) { $ list [ ] = $ name ; } return implode ( ', ' , $ list ) ; }
docstring: Convenience function for error reporting
  
  @param array $lookup
  
  @return string
docstring_tokens: Convenience function for error reporting