php - Unable to get vCalendar (vcs) to be time adjusted when opened in different time zone -
i creating .vcs file using icalcreator (v2.6) php library. when event opened in outlook (newest version, don't know other versions), meeting date/time not adjusted local time. thought might related this, setting x-microsoft-cdo-tzid value did not seem help. i'm hoping knows vcs file creation can point me in right direction. here vcs file creating:
begin:vcalendar calscale:gregorian method:publish prodid:-//127.0.53.53//nonsgml icalcreator 2.6// version:2.0 begin:vtimezone tzid:us/pacific last-modified:20040110t032845z x-microsoft-cdo-tzid:13 begin:daylight dtstart:19900404t010000 tzoffsetfrom:-0800 tzoffsetto:-0700 rrule:freq=yearly;bymonth=4;byday=1su tzname:pdt end:daylight begin:standard dtstart:19901026t060000 tzoffsetfrom:-0700 tzoffsetto:-0800 rrule:freq=yearly;bymonth=10;byday=-1su tzname:pst end:standard end:vtimezone begin:vevent uid:20170413t205736cest-5403nbu2iu@127.0.53.53 dtstamp:20170413t185736z description:sdfg\n\nsome awesome description dtstart:20170419t180000 duration:pt3h0m0s location:the best place in world summary:one fine summary end:vevent end:vcalendar
years late, here's how works me, , maybe else happens upon question.
i've never tried tzoffsetfrom...so not sure that's or if should work. however, if put timezone in dtstart , dtend, automatically adjust. need date in utc last-modified date. ($start , $end php datetime objects):
"dtstart:".$start->settimezone(new datetimezone('utc'))->format('ymd\this\z').$eol. "dtend:".$end->settimezone(new datetimezone('utc'))->format('ymd\this\z') so, basically, put date utc timezone , format date/time z @ end communicate client.
a full working example (in event it's helpful anyone) is:
<?php date_default_timezone_set('america/new_york'); //configure here $fromname = "john doe"; $fromemail = "john.doe@example.com"; $toname = "your name"; $toemail = 'yourname@example.com'; $start = new datetime('2017-08-15 15:00'); $end = new datetime('2017-08-15 16:00'); $summary = "hello world event"; //end configuration $uid = "0123456789"; $headers = array(); $boundary = "_cal_" . uniqid("b",true) . "_b_"; $headers[] = "mime-version: 1.0"; $headers[] = "content-type: multipart/alternative; boundary=\"".$boundary."\""; $headers[] = "to: \"{$toname}\" <{$toemail}>"; $headers[] = "from: \"{$fromname}\" <{$fromemail}>"; $calendarlines = array( "begin:vcalendar", "method:request", "prodid:-//php//meetingrequest//en", "version:2.0", "begin:vevent", "organizer;cn={$fromname}:mailto:{$fromemail}", "attendee;role=req-participant;partstat=needs-action;rsvp=true;cn={$toname}:mailto:{$toemail}", "description:{$summary}", "summary:{$summary}", "dtstart:".$start->settimezone(new datetimezone('utc'))->format('ymd\this\z'), "dtend:".$end->settimezone(new datetimezone('utc'))->format('ymd\this\z'), "uid:{$uid}", "class:public", "priority:5", "dtstamp:".gmdate('ymd\this\z'), "transp:opaque", "status:confirmed", "sequence:0", "location:123 street", "begin:valarm", "action:display", "description:reminder", "trigger;related=start:-pt15m", "end:valarm", "end:vevent", "end:vcalendar" ); $calendarbase64 = base64_encode(implode("\r\n",$calendarlines)); //ensure don't have lines longer 70 characters older computers: $calendarresult = wordwrap($calendarbase64,68,"\n",true); $emaillines = array( "--{$boundary}", "content-type: text/html; charset=\"iso - 8859 - 1\"", "content-transfer-encoding: quoted-printable", "", "<html><body>", "<h1>hello world</h1>", "<p>this calendar event test</p>", "</body></html>", "", "--{$boundary}", "content-type: text/calendar; charset=\"utf - 8\"; method=request", "content-transfer-encoding: base64", "", $calendarresult, "", "--{$boundary}--" ); $emailcontent = implode("\n",$emaillines); $headersresult = implode("\n",$headers); mail($toemail, $summary, $emailcontent, $headersresult ); echo("<pre>".htmlentities($headersresult)."\n\n".htmlentities($emailcontent)."</pre>"); echo("<br /><br />"); echo("<pre>".base64_decode($calendarresult)."</pre>");
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