小编And*_*ndy的帖子

我正在尝试编写基本的 CalDAV 交互脚本，以便与给定帐户的 Apple iCloud 日历一起使用。目前，我收到如下所示的回复：

Precondition Failed
Requested resource has a matching ETag.

我使用的代码最初取自http://trentrichardson.com/2012/06/22/put-caldav-events-to-calendar-in-php/并适应以下内容：

<?php

$account = array(
    'server'=> 'p05',
    'id'    => '######',
    'user'  => 'a****z@me.com',
    'pass'  => '*****'
);


$url = 'https://'.$account['server'].'-caldav.icloud.com/'.$account['id'].'/calendars/work/';
$userpwd = $account['user'] .":". $account['pass'];
$description = 'Test event description';
$summary = 'Test event';
$tstart = gmdate("Ymd\THis\Z", strtotime("-2 days"));
$tend = gmdate("Ymd\THis\Z", strtotime("-2 days"));
$tstamp = gmdate("Ymd\THis\Z");

$body = <<<__EOD
BEGIN:VCALENDAR
VERSION:2.0
BEGIN:VEVENT
DTSTAMP:$tstamp
DTSTART:$tstart
DTEND:$tend
UID:$uid
DESCRIPTION:$description
LOCATION:Office
SUMMARY:$summary
END:VEVENT
END:VCALENDAR
__EOD;

$headers …