Warning:Cannot modify header information - headers already sent by (output started at这个错误你是不是解决了?怎么解决的?
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![Warning:Cannot modify header information - headers already sent by (output started at这个错误你是不是解决了?怎么解决的?](/uploads/image/z/14938241-41-1.jpg?t=Warning%3ACannot+modify+header+information+-+headers+already+sent+by+%28output+started+at%E8%BF%99%E4%B8%AA%E9%94%99%E8%AF%AF%E4%BD%A0%E6%98%AF%E4%B8%8D%E6%98%AF%E8%A7%A3%E5%86%B3%E4%BA%86%EF%BC%9F%E6%80%8E%E4%B9%88%E8%A7%A3%E5%86%B3%E7%9A%84%EF%BC%9F)
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Warning:Cannot modify header information - headers already sent by (output started at这个错误你是不是解决了?怎么解决的?
Warning:Cannot modify header information - headers already sent by (output started at
这个错误你是不是解决了?怎么解决的?
Warning:Cannot modify header information - headers already sent by (output started at这个错误你是不是解决了?怎么解决的?
出这个错误是因为 header('Content-Type:text/html;charset= UTF-8');发送头之前不能有任何输出,空格也不行,你需要将header(...)之前的空格去掉,或者其他输出的东西去掉,如果他上面include其他文件了,你还要检查其他文件里是否有输出
Warning: Cannot modify header information - headers already sent by (不然你header之前就打印了内容,这肯定报错。建议你看下header用法 看