original_string: public static function toString($type)
      {
          if (! isset(self::$strings[$type])) {
              return $type;
          }
          return self::$strings[$type];
      }
code: public static function toString($type)
      {
          if (! isset(self::$strings[$type])) {
              return $type;
          }
          return self::$strings[$type];
      }
code_tokens: public static function toString ( $ type ) { if ( ! isset ( self :: $ strings [ $ type ] ) ) { return $ type ; } return self :: $ strings [ $ type ] ; }
docstring: Convert PHP error code to string.
  
  @param int $type
  Error code.
  @return string Error code as a string.
docstring_tokens: Convert PHP error code to string .