custom conditional placeholder

	function em_mod_offline_conditional($replacement, $condition, $match, $EM_Event){
		if (is_object($EM_Event)) {
			switch ($condition) {
				case 'has_offline':
					$count_offline = 0;
					foreach($EM_Event->get_bookings() as $EM_Booking){
						$current_booking_id = $EM_Booking->output('#_BOOKINGID');
						if ( $EM_Booking->booking_meta['gateway'] == 'offline' && $current_booking_id == $EM_Booking->booking_id ){
							$count_offline++;
						}
					}
					if ( $count_offline > 0 ){
						$replacement = preg_replace("/\{\/?$condition\}/", '', $match);
					}else{
						$replacement = '';
					}
					break;
			}
		}
		return $replacement;
	}
	add_filter('em_event_output_condition', 'em_mod_offline_conditional', 10, 4);