since v.0.8.0
Add Custom iCal & gCal Buttons / Links to your site
Use the xdgp_calendar_ical_link() and xdgp_calendar_gcal_link() functions to generate URLs for iCal and gCal events respectively.
These functions take a single performance object as an argument.
foreach($post->performancesas$performance) {// ... Display Performance Informationecho'<a class="btn btn-primary" href="'.xdgp_calendar_ical_link($performance).'">Add to iCal</a>';echo'<a class="btn btn-primary" href="'.xdgp_calendar_gcal_link($performance).'">Add to Google Calendar</a>';// ...}