wordpress4.4版本默认集成了JSON REST API，这个功能是备受关注的，对于开发者来说，是非常有价值的，通过JSON REST API可以在外部程序中很方便地调用wordpress网站内部的数据，比如可以使用wordpress来制作app程序。
对绝大多数的wordpress使用者来说，这个功能是用不到的，JSON REST API采用的是GET请求方式来获取数据，这样会为DDOS攻击提供了新的攻击途径，就像XML-RPC接口一样，为了避免黑客利用此功能来攻击我们的服务器和网站程序，这篇wordpress教程里我们就向大家介绍一下禁用 wordpress中JSON REST API功能或者说移除head里面wp-json链接的方法。
切换到主题目录，打开functions.PHP文件，加入以下代码：
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