安装wordpress出现：Warning: Cannot modify header information - headers already sent (output started at...)错误解决方案

在安装wordpress过程中，不断头部出现Warning: Cannot modify header information - headers already sent (output started at...)的错误提示，但仍然能继续安装完成。但是，当安装完登录时，页面上会直接显示出全部类似的错误，如：

 

Warning: Cannot modify header information - headers already sent by (output started at /www/htdocs/yoozhu/wp-config.php:1) in /www/htdocs/wordpress/wp-login.php on line 255
Warning: Cannot modify header information - headers already sent by (output started at /www/htdocs/yoozhu/wp-config.php:1) in /www/htdocs/wordpress/wp-login.php on line 267
Warning: Cannot modify header information - headers already sent by (output started at /www/htdocs/yoozhu/wp-config.php:1) in /www/htdocs/wordpress/wp-includes/pluggable.php on line 649
Warning: Cannot modify header information - headers already sent by (output started at /www/htdocs/yoozhu/wp-config.php:1) in /www/htdocs/wordpress/wp-includes/pluggable.php on line 650
Warning: Cannot modify header information - headers already sent by (output started at /www/htdocs/yoozhu/wp-config.php:1) in /www/htdocs/wordpress/wp-includes/pluggable.php on line 651
Warning: Cannot modify header information - headers already sent by (output started at /www/htdocs/yoozhu/wp-config.php:1) in /www/htdocs/wordpress/wp-includes/pluggable.php on line 850

查了下原因和解决方法。主要是因为我之前在wp-config.php里曾经用记事本编辑过数据表的文字编码：define('DB_CHARSET', 'utf8');造成UTF8编码和BOM冲突，解决办法：使用写字板、UltraEdit、EditPlus等编辑器重新编辑文件保存。并回想起Ucenter安装介绍中说过UTF-8 编码的程序文件不建议使用 Windows 的“记事本”。