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HomeBackend DevelopmentPHP Tutorial输出函数定义,该怎么解决

输出函数定义
如果知道某个函数名,在不能看源代码的情况下如何知道函数内容是什么?

------解决方案--------------------
你只可以通过的的反应来推测
------解决方案--------------------
这个就类似于猜化学成分,然后再去试验,验证猜想.
先猜内容,估计得出的结果.再测试.看看结果是不是和猜想的一样.
------解决方案--------------------
只能靠猜
------解决方案--------------------
PHP 有自带的反射机制,包括类,函数都有对应的类,你去看看手册有点多 
------解决方案--------------------
array_rand rand
array_merge merge ……
慢慢联想

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