创建可在 WordPress php 中下载的 ICS 文件

Question

我正在尝试使用 php 在 WordPress 中创建 ICS 文件。我不确定我错过了什么我对使用 WordPress 有点陌生我觉得这应该可以工作但由于某种原因我只是收到错误

无法启动'开始:VCALENDARVERSION:2.0PRODID:-//ICalendarCreator//NONSGML//ENBEGIN:VEVENTDTSTART:2022/08/22%208:30%20amDTEND:2022/08/22%204:30%20pmSUMMARY:Flexitec%C2%AE %2 0PVC%20Pipe%20Joining%20and%20Installation位置：布里斯班描述：摘要：Flexitec%C2%AE%20PVC%20Pipe%20Joining%20and%20InstallationEND：VEVENTEND：VCALENDAR'因为该方案没有注册处理程序。

我发现的是，wordpress 可能会做一些与文件头不同的事情？

这是我目前的代码：

`<?php //Give the iCal export a filename
    $filename = urlencode( $title.'-ical-' . date('Y-m-d') . '.ics' );
    $eol = "\r\n";
    $uid = get_the_ID();
    $created_date = get_post_time('Ymd\THis\Z', true, $uid );
    $url = get_the_permalink();
$organiser = "PARTEC";

    //Collect output
    ob_start();

    // Set the correct headers for this file
    header("Content-Description: File Transfer");
    header("Content-Disposition: attachment; filename=".$filename);
    header('Content-type: text/calendar; charset=utf-8');
    header("Pragma: 0");
    header("Expires: 0");?>

    BEGIN:VCALENDAR
    VERSION:2.0
    PRODID:-//<?php echo $title; ?>
    CALSCALE:GREGORIAN
    X-WR-CALNAME:<?php echo $title.$eol;?>
    BEGIN:VEVENT
    CREATED:<?php echo $created_date.$eol;?>
    UID:<?php echo $uid.$eol;?>
    DTEND;VALUE=DATE:<?php echo $newTime2.$eol; ?>
    DTSTART;VALUE=DATE:<?php echo $newTime.$eol; ?>
    DTSTAMP:<?php echo $created_date.$eol; ?>
    LOCATION:<?php echo $acflocation.$eol; ?>
    DESCRIPTION:<?php echo $eol; ?>
    SUMMARY:<?php echo $title.$eol; ?>
    ORGANIZER:<?php echo $organiser.$eol;?>
    URL;VALUE=URI:<?php echo $url.$eol; ?>
    TRANSP:OPAQUE
    BEGIN:VALARM
    ACTION:DISPLAY
    TRIGGER;VALUE=DATE-TIME:<?php echo $created_date.$eol; ?>
    DESCRIPTION:Reminder for <?php echo (get_the_title()); echo $eol; ?>
    END:VALARM
    END:VEVENT
    END:VCALENDAR`
                            
    <?php //Collect output and echo
    $eventsical = ob_get_contents();
    ob_end_clean();



    ?>
                            <a href="<?php echo $eventsical; ?>">iCal Calendar</a>`

如果有人有任何煽动，我将非常感激。

谢谢你！