PHP iCalendar

In and event the ATTENDEE may look like this
ATTENDEE;CN=The
Name;RSVP=FALSE;PARTSTAT=ACCEPTED;ROLE=REQ-PARTICIPANT;X-UID=vcard.ll-196:m
ailto:name@somewhere

currently everything is extracted as name and looks very
scary if the user clicks on the event to see it's details.

I have fixed it like this:
case 'ATTENDEE':
$attendee[] = array ('name' =>
ereg_replace ("ATTENDEE;CN=([^;]*).*", "\\1", $field),
'email' =>
ereg_replace (".*mailto:(.*).*", "\\1", $field),
'RSVP' =>
ereg_replace (".*RSVP=([^;]*).*", "\\1", $field),
'PARSTAT' =>
ereg_replace (".*PARTSTAT=([^;]*).*", "\\1", $field),
'ROLE' =>
ereg_replace (".*ROLE=([^;]*).*", "\\1", $field));
break;

I have added parsing for additional fields which may be
used in the future.