自写的 php 英文站，评论有人提交这个代码，经过 htmlspecialchars 保存在数据表，今天点开后台评论管理页面，就一直弹 1，弹域名这些，并且发送了一些请求到乱七八糟的域名，本地断网测试一番又没发现问题，请大家看看有什么问题？
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