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Home > Backend Development > PHP Tutorial > 在console中看到AJAX请求要用1.5S左右，如何去测试PHP代码中是哪一段比较费时间，用什么工具可以看到整个运行过程吗？

在console中看到AJAX请求要用1.5S左右，如何去测试PHP代码中是哪一段比较费时间，用什么工具可以看到整个运行过程吗？

WBOY
Release： 2016-06-06 20:29:25
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AJAX请求的是已经生成好的缓存文件，文件本身不大，只有几K，但是请求用了1.5S左右，应该用什么工具去测试后端的代码效率

回复内容：

AJAX请求的是已经生成好的缓存文件，文件本身不大，只有几K，但是请求用了1.5S左右，应该用什么工具去测试后端的代码效率

最简单的方法是在要测试的代码块首尾记录一下时间，然后算差值

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