yii2 HeadersAlreadySentException 報錯
An Error occurred while handling another error:exception 'yii\web\HeadersAlreadySentException' with message 'Headers already sent in /xxxx/xxxx ...
原文：Yii2 報錯 Headers already sent in
有時候我們把Yii 版本進行升級之后 會報一些莫名其妙的錯誤，這次就遇到如下錯誤信息 anErroroccurredwhilehandlinganothererror: exception yii web HeadersAlreadySentException withmessage Headersalreadysentin xxxx xxxx xxx.phponline . in xxxx xx ...
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yii2 HeadersAlreadySentException 報錯
\HeadersAlreadySentException' with message 'Headers already sent in /xxxx ...
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