$_GET $_POST 接受这些数据时，是否有必要在系统底层封装函数来验证数据
一般情况下我个人都是喜欢直接使用 $_GET['参数']来进行代码编写，是否有必要在系统底层封装一个函数，来初始化判断是否传值或者是否 isset 是否empty ,还是需要的时候，在程序页面直接验证就可以。
系统底层封装是否有必要，2者那个效率更高@！
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一般情况下我个人都是喜欢直接使用 $_GET['参数']来进行代码编写，是否有必要在系统底层封装一个函数，来初始化判断是否传值或者是否 isset 是否empty ,还是需要的时候，在程序页面直接验证就可以。
系统底层封装是否有必要，2者那个效率更高@！
觉得很有必要，首先前端传来的数据并不安全，其次就是整个网站里面会存在大量的get和post请求，如果每一次请求的时候都要去做验证和安全过滤，会无形增加很多繁琐的过程，直接封装一个函数来调用会便捷很多。
很多框架都带有获取和过滤输入参数的功能，你这么问不会是没有任何架构把…
既然大家都带有这个功能，足以说明这项功能是利大于弊的。
如果你的框架不带这些功能，那么你必须要过滤吧
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