如何解决Warning: Cannot modify header information错误?
经过上周的“mysql大数据迁移”之后,这两天网站的迁移工作终于告一段落,但是昨天登录后台的时候突然发现WordPress登录界面提示“Warning: Cannot modify header information – headers already sent by (output started at /www/wp-content/themes/pozhejun/function.php:1) in /www/wp-login.php on line 21”的错误信......
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