This site is temporarily offline

Due to a serious PHP security vulnerability disclosed a few hours ago, this website has been temporarily taken offline. We will apply the official patch and restore access once the PHP team releases the fix.

This is an unexpected, unplanned emergency maintenance. We know this is frustrating, but the situation requires immediate attention. Thank you for your understanding.

由于 PHP 在几小时前被披露存在严重安全漏洞，本站已暂时停机。预计在 PHP 官方发布修复补丁后完成升级并恢复访问。

这是一次非计划的突发性维护。我们知道这很让人不快，但此特殊情况必须认真对待，感谢您的理解。