如何使用 PHP 在给定的日期范围和时间生成 .ics 文件 [关闭]

我试图找到一种有效的方法，根据给定的日期范围（开始日期 - 结束日期）和提醒时间，使用 PHP 生成可下载的“.ics”文件。

谁能给我提供一个示例 PHP 代码来创建此功能。

http://web.archive.org/web/20120419230026/http://jamiebicknell.tumblr.com/post/413492676/ics-generator-php-class

Note:原来的博文不见了；使用 arhcive.org 链接保存。

复制并粘贴上述链接的信息：

<?php
class ICS {
    var $data;
    var $name;
    function ICS($start,$end,$name,$description,$location) {
        $this->name = $name;
        $this->data = "BEGIN:VCALENDAR\nVERSION:2.0\nMETHOD:PUBLISH\nBEGIN:VEVENT\nDTSTART:".date("Ymd\THis\Z",strtotime($start))."\nDTEND:".date("Ymd\THis\Z",strtotime($end))."\nLOCATION:".$location."\nTRANSP: OPAQUE\nSEQUENCE:0\nUID:\nDTSTAMP:".date("Ymd\THis\Z")."\nSUMMARY:".$name."\nDESCRIPTION:".$description."\nPRIORITY:1\nCLASS:PUBLIC\nBEGIN:VALARM\nTRIGGER:-PT10080M\nACTION:DISPLAY\nDESCRIPTION:Reminder\nEND:VALARM\nEND:VEVENT\nEND:VCALENDAR\n";
    }
    function save() {
        file_put_contents($this->name.".ics",$this->data);
    }
    function show() {
        header("Content-type:text/calendar");
        header('Content-Disposition: attachment; filename="'.$this->name.'.ics"');
        Header('Content-Length: '.strlen($this->data));
        Header('Connection: close');
        echo $this->data;
    }
}
?>

将 ICS 文件输出到浏览器并为用户提供打开或保存的选项

<?php
$event = new ICS("2009-11-06 09:00","2009-11-06 21:00","Test Event","This is an event made by Jamie Bicknell","GU1 1AA");
$event->show();
?>

将 ICS 文件保存到服务器的当前工作目录中

<?php
$event = new ICS("2009-11-06 09:00","2009-11-06 21:00","Test Event","This is an event made by Jamie Bicknell","GU1 1AA");
$event->save();
?>