Google Calendar API v3 - 使用硬编码凭据进行身份验证

I am writing a PHP application that's supposed to allow users to add certain events to a private Google Calendar. The calendar is owned by me, and I need a way for PHP to communicate with the calendar API using fixed credentials (everyone can add events using a form on the website, but the calendar itself is not publicly visible).I am writing a PHP application that's supposed