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session_start()函数有什么作用啊解决办法

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Release: 2016-06-13 13:30:19
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session_start()函数有什么作用啊?
最好能够举个简单的例子,谢谢了

------解决方案--------------------
是开启 session 功能。
不开启,又怎样使用 $_SESSION 功能呢??对不?

一般在使用前,要加上 session_start 这句的。

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