original_string: public function get_filter_values($filter) {
          if ($allvalues = (array) $this->get_config('filtervalues')) {
              if (isset($allvalues[$filter])) {
                  return $allvalues[$filter];
              }
          }
  
          return [];
      }
code: public function get_filter_values($filter) {
          if ($allvalues = (array) $this->get_config('filtervalues')) {
              if (isset($allvalues[$filter])) {
                  return $allvalues[$filter];
              }
          }
  
          return [];
      }
code_tokens: public function get_filter_values ( $ filter ) { if ( $ allvalues = ( array ) $ this -> get_config ( 'filtervalues' ) ) { if ( isset ( $ allvalues [ $ filter ] ) ) { return $ allvalues [ $ filter ] ; } } return [ ] ; }
docstring: Get the configured filter values.
  
  @param   string      $filter     The filter to retrieve values for.
  @return  array
docstring_tokens: Get the configured filter values .