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Adding .ics downloads to save events to iCal or Outlook with Expression Engine

Posted on April 10, 2012 by Michael Rosario
Total Posts: 33 | Join date: 03-12-11

This is a good way to download calendar events to an ICS file that is available to be imported to iCal, Outlook, iPhone, etc. We're using Expression Engine and PHP to accomplish the following. Please take note that there are "/r/n" (returns,new lines) that is hidden - when copying this code the spaces/newline are important.

{exp:channel:entries channel="events" status="not closed" show_future_entries="yes" disable="member_data|pagination|trackbacks|categories" show_expired="yes" orderby="date" sort="asc" limit="1"}
<?
ob_start();  //start internal buffer
header('Content-type: text/calendar');
header('Content-Disposition: attachment; filename="events-{entry_date format='%Y%m%dT%H%i%sZ'}.ics"');
?>
BEGIN:VCALENDAR
PRODID:-//COMPANY/ Event//NONSGML v1.0//EN
CALSCALE:GREGORIAN
X-WR-CALNAME:COMPANY
VERSION:2.0
METHOD:PUBLISH
TRANSP:TRANSPARENT
X-WR-TIMEZONE:America/New_York
BEGIN:VEVENT
UID:{entry_id}
{if event-day == "Yes"}
DTSTART;VALUE=DATE:{entry_date format="%Y%m%d"}
<?  $month = "{expiration_date format='%m'}"; $day = "{expiration_date format='%d'}"; $year = "{expiration_date format='%Y'}"; $d = mktime(0,0,0,$month,$day,$year); $end_date = date("Ymd",strtotime("+1 days",$d)); ?>
DTSTAMP:{entry_date format="%Y%m%dT%H%i%sZ"}
DTEND;VALUE=DATE:<? echo $end_date; ?>

{if:else}
DTSTAMP:{entry_date format="%Y%m%dT%H%i%sZ"}
DTSTART;VALUE=DATE:{entry_date format="%Y%m%dT%H%i%s"}
DTEND;VALUE=DATE:{expiration_date format="%Y%m%dT%H%i%s"}
{/if}
SUMMARY:<? $title="{title}"; $title=str_replace("amp;","",$title); echo $title; ?>

DESCRIPTION:{event-description}
URL:{title_permalink="news_and_events/event_detail"}
END:VEVENT
END:VCALENDAR

<?
$event = ob_get_contents();
ob_end_clean();
flush();
echo $event;
?>
{/exp:channel:entries} 

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