由Wordpress自动生成的PHP页面中的BOM

我管理两个不同的博客.它们都是wordpress 2.8.6(因此它们具有完全相同的源代码,插件除外)但它们位于两个不同的托管平台(hostmonster.com和aruba.it).为了解释我的问题,我已经使用SmartSniff转发了与每个站点的会话.

这是来自hostmonster的转储:

GET /blog/paolo/ HTTP/1.1
Host: www.e-venturi.com
Accept-Encoding: identity
Accept-Language: en-us
Accept: text/html, text/plain, text/xml, image/gif, image/x-xbitmap, image/x-icon,image/jpeg, image/pjpeg, application/vnd.ms-powerpoint, application/vnd.ms-excel, application/msword, */*
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0;)


HTTP/1.1 200 OK
Date: Sat, 28 Nov 2009 23:47:38 GMT
Server: Apache/2.2.14 (Unix) mod_ssl/2.2.14 OpenSSL/0.9.8l DAV/2 mod_auth_passthrough/2.1 FrontPage/5.0.2.2635
X-Powered-By: PHP/5.2.11
X-Pingback: http://www.e-venturi.com/blog/paolo/xmlrpc.php
Vary: Accept-Encoding
Transfer-Encoding: chunked
Content-Type: text/html; charset=UTF-8

a6

现在来自阿鲁巴:

GET /blog/ HTTP/1.1
Host: www.cubanite.net
Accept-Encoding: identity
Accept-Language: en-us
Accept: text/html, text/plain, text/xml, image/gif, image/x-xbitmap, image/x-icon,image/jpeg, image/pjpeg, application/vnd.ms-powerpoint, application/vnd.ms-excel, application/msword, */*
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0;)


HTTP/1.1 200 OK
Date: Sat, 28 Nov 2009 23:49:19 GMT
Server: Apache/2.2
X-Pingback: http://www.cubanite.net/blog/xmlrpc.php
Vary: Accept-Encoding
Transfer-Encoding: chunked
Content-Type: text/html; charset=UTF-8

100b
...

(注意:a6和100b是SmartSniff报告的数据包大小)

好吧,最大的区别是在阿鲁巴前面的三个点.它们是UTF-8 BOM(0xef 0xbb 0xbf).