我怎么看论坛有一大坨Warning？

mandrakechina

在最上面有一大坨Warning:

Warning: Cannot modify header information - headers already sent by (output started at /sfroot/home/groups/linuxfans/htdocs/nuke/header.php:32) in /sfroot/home/groups/linuxfans/htdocs/nuke/includes/sessions.php on line 222

Warning: Cannot modify header information - headers already sent by (output started at /sfroot/home/groups/linuxfans/htdocs/nuke/header.php:32) in /sfroot/home/groups/linuxfans/htdocs/nuke/includes/sessions.php on line 223

Warning: Cannot modify header information - headers already sent by (output started at /sfroot/home/groups/linuxfans/htdocs/nuke/header.php:32) in /sfroot/home/groups/linuxfans/htdocs/nuke/includes/page_header.php on line 496

Warning: Cannot modify header information - headers already sent by (output started at /sfroot/home/groups/linuxfans/htdocs/nuke/header.php:32) in /sfroot/home/groups/linuxfans/htdocs/nuke/includes/page_header.php on line 498

Warning: Cannot modify header information - headers already sent by (output started at /sfroot/home/groups/linuxfans/htdocs/nuke/header.php:32) in /sfroot/home/groups/linuxfans/htdocs/nuke/includes/page_header.php on line 499

Axin

？

我怎么看不到？

有的人能看到，有人看不到？