针对PHP处理请求信息的情况探解

IE各版本浏览器

IE5.5到IE8基本没有区别，除了HTTP_USER_AGENT可以判断IE版本，IE9作出了一些改变

IE5.5-IE8[HTTP_ACCEPT]
image/jpeg, application/x-ms-application, image/gif, application/xaml+xml, image/pjpeg, application/x-ms-xbap, application/x-shockwave-flash, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, application/QVOD, application/QVOD, */*

IE9[HTTP_ACCEPT]
text/html, application/xhtml+xml, */*

IE5.5-IE8[HTTP_USER_AGENT]
Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 6.1; QQDownload 677; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; InfoPath.2; Tablet PC 2.0; .NET4.0C; .NET4.0E; AskTbSPC2/5.9.1.14019)
中间MSIE版本随之升级，分别为5.5  6  7  8

IE9[HTTP_USER_AGENT]
Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)

火狐浏览器4.0 beta12

HTTP_ACCEPT
text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8

HTTP_USER_AGENT
Mozilla/5.0 (Windows NT 6.1; rv:2.0b12) Gecko/20100101 Firefox/4.0b12 QQDownload/1.7

UC浏览器

HTTP_ACCEPT
text/html,application/xhtml+xml,aplication/xml;q=0.9,*/*;q=0/8,dn/2723644603-8b9fc63e,text/vnd wap.wml'q=0.6ss/240*320,UC/28

HTTP_USER_AGENT
NOKIA5320/UCWEB 7.5.0.75/28/999

NOKIA系统浏览器[CMWAP]

HTTP_ACCEPT
text/html,text/css,multipart/mixed,application/java-archive,application/java,application/x-java-archive,text/vnd.sun,j2me,app-descriptor,application/vnd.oma.drm.message,application/vnd.oma.drm.content,application/vnd.oma.dd+xml,application/vnd.oma.drm.rights+xml,application/vnd.oma.drm.rights+wbxml,application/x-nokia-widget,*/*

HTTP_USER_AGENT
没有AGENT
HTTP_VIA
HTTP/1.1 GDSZ-PS-WAP11-GW030(infoX-WISG,Huawei Technologies)
HTTP_X_NOKIA_MUSICSHOP_VERSION：09.0820.9
HTTP_X_NOKIA_MUSICSHOP_BEARER：GPRS/3G

NOKIA系统浏览器[CNNET]

HTTP_ACCEPT
text/html,text/css,multipart/mixed,application/java-archive,application/java,application/x-java-archive,text/vnd.sun,j2me,app-descriptor,application/vnd.oma.drm.message,application/vnd.oma.drm.content,application/vnd.oma.dd+xml,application/vnd.oma.drm.rights+xml,application/vnd.oma.drm.rights+wbxml,application/x-nokia-widget,*/*

HTTP_USER_AGENT
Mozilla/5.0(SymbianOS/9.3;U;Series60/3.2 Nokia5320d-1/05.15;Profile/MIDP-2.1 Configuration/CLDC-1.1)AppleWebkit/413(KHTML,like Gecko) Safari/413
HTTP_VIA
没有VIA
HTTP_X_NOKIA_MUSICSHOP_VERSION：09.0820.9
HTTP_X_NOKIA_MUSICSHOP_BEARER：GPRS/3G
HTTP_X_WAP_PROFILE：http://nds1.nds.nokia.com/uaprof/N5320d-1r100-2G.xml

谷歌浏览器

HTTP_ACCEPT
application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5
HTTP_USER_AGENT
Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/534.20 (KHTML, like Gecko) Chrome/11.0.672.2 Safari/534.20

傲游3浏览器

HTTP_ACCEPT
application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5
HTTP_USER_AGENT
Mozilla/5.0 (Windows; U; Windows NT 6.1; ) AppleWebKit/533.9 (KHTML, like Gecko) Maxthon/3.0 Safari/533.9(貌似跟谷歌很神似，应该是同内核浏览器？)

Opera浏览器

HTTP_ACCEPT
text/html, application/xml;q=0.9, application/xhtml+xml, image/png, image/jpeg, image/gif, image/x-xbitmap, */*;q=0.1, text/vnd.wap.wml, image/vnd.wap.wbmp; level=0
HTTP_USER_AGENT
Opera/9.80 (Windows NT 6.1; U; zh-cn) Presto/2.7.62 Version/11.01