使用Google Calendar API（PHP）插入包含非ASCII字符的事件

我在使用Google Calendar API（PHP）的v3插入活动时遇到问题。

I'm having trouble inserting events using v3 of the Google Calendar API (PHP).

如果活动的说明包含字符，例如磅符号£，事件在日历中创建，但描述为空。这似乎是在初始7位字符代码（ASCII代码0-127）之外的所有字符的真实。

If a description for an event contains a character such as the pound sign £, the event is created in the calendar but the description is left blank. It seems that this is true of all characters outside of the initial 7-bit character codes (ASCII codes 0-127).

通过使用htmlentities函数，我能够用& pound;

By using the htmlentities function I am able to replace all instances of the pound sign with: £

替换井号符号的所有实例。如果用户使用基于网络的Google日历版本，但移动应用程序不会将其转换回英镑符号。

This is fine if the user is using a web-based version of Google Calendar but mobile apps do not convert this back to the pound sign.

这是一个相当大的问题，因为事件经常从Microsoft使用非ASCII引号的字。

This is quite a big issue as events are often copy/pasted from Microsoft Word which uses non-ascii quotation marks.

有一个特定的编码方法吗？我目前在MySQL数据库和PHP脚本中使用UTF-8编码。

Is there a certain method of encoding that will get around this? I'm currently using UTF-8 encoding in the MySQL database and PHP scripts.

我使用以下代码创建事件：

I'm using the following code to create the event:

function buildGoogleEvent($title,$description,$start_time,$end_time,$location) {
    // Create an event object and set some basic event information
    $event = new Google_Event();
    $event->setSummary($title);
    $event->setLocation($location);
    $event->setDescription(htmlentities($description, ENT_NOQUOTES, 'utf-8'));

    // Convert the start and end date/times to ATOM format
    $start_time_atom = str_replace(" ", "T", $start_time);
    $end_time_atom = str_replace(" ", "T", $end_time);

    // Add the event start to the event object
    $start = new Google_EventDateTime();
    $start->setDateTime($start_time_atom);
    $start->setTimeZone('Europe/London');
    $event->setStart($start);

    // Add the event end to the event object
    $end = new Google_EventDateTime();
    $end->setDateTime($end_time_atom);
    $end->setTimeZone('Europe/London');
    $event->setEnd($end);

    return $event;
}

此代码插入事件：

$createdEvent = $service->events->insert($google_calendar_id, $event);

已经坐了一段时间，所以任何帮助是赞赏！我的PHP版本是5.5.4。

Been sitting on this for quite a while so any help is appreciated! My PHP version is 5.5.4.