Warning: Cannot modify header information - headers already sent by (output started at index.php:1) in login_functions.inc.php on line 7
php 重定向出了问题,求大神帮助,我发誓已经找了6个小时了,还是没有找出哪里有问题
在我本地服务器上运行一切正常,但是一到网络上跑,就出现这个问题,我觉得,header前面只能出现错误信息,它前面确实没有任何输出了,那这个错误信息是什么呢?如何调试?我好郁闷。为什么本地服务器可以运行,一切正常,网络服务器就有这么多问题
回复讨论(解决方案)
打印$url校对,如果相同,再看看服务器上这几个引入的php有没有bom头
显然 index.php 有 BOM 头,而你的服务器的 php 版本较低

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