function createRrule() {
    $cnt = count( $this->rrule );
    if( 0 >= $cnt )
      return;
    return $this->_format_recur( 'RRULE', $this->rrule );
  }
function createRrule() {
    $cnt = count( $this->rrule );
    if( 0 >= $cnt )
      return;
    return $this->_format_recur( 'RRULE', $this->rrule );
  }
function createRrule ( ) { $ cnt = count ( $ this -> rrule ) ; if ( 0 >= $ cnt ) return ; return $ this -> _format_recur ( 'RRULE' , $ this -> rrule ) ; }
creates formatted output for calendar component property rrule

@author Kjell-Inge Gustafsson <ical@kigkonsult.se>
@since 0.7.43 - 2006-09-15
@return string
creates formatted output for calendar component property rrule