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php header 跳转: PHP header跳转与return问题

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Release： 2016-06-21 08:51:11
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调整了一个小时的程序，才发现有如此大的bug，以后用header跳转得注意了
使用header的跳转即“Location”，不能代替return
header只是向客户端发送原始的 HTTP 报头，即便是重定向，都不代表程序的终止。重定向后，程序仍然要执行完当前php文件，直到退出，你的页面虽然跳转，但后面的语句仍会对浏览器发生作用，特别是发生二次重定向的时候。
所以重定向后最好带上return
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