php判断浏览器和语言
<span style="font-family: 'Lucida Grande', 'Lucida Sans Unicode', Verdana; font-size: 14px; background-color: #3a3a3a;">用php语言来判断浏览器类型其实很简单。因为浏览器在和服务器连接时候都会先发送一些包含自己信息的内容（浏览器类型、语言啦）。
这里我们主要分析的是_SERVER["HTTP_USER_AGENT"](浏览器类型)和_SERVER["HTTP_ACCEPT_LANGUAGE"](浏览器语言)。
我们所要做的就是把这些内容读出来，然后用strpos或者preg_match函数来对比就可以了。
判断浏览器类型:
<div class="syntaxhighlighter nogutter" style="background-image: none !important; background-color: #ffffff !important; text-align: left !important; float: none !important; vertical-align: baseline !important; height: auto !important; width: 1051px; line-height: 1.1em !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-style: normal !important; font-size: 1em !important; margin-top: 1em !important; margin-right: 0px !important; margin-bottom: 1em !important; margin-left: 0px !important; direction: ltr !important; padding: 0px !important; border: 1px !important none !important #e0e0e0 !important;"><div class="lines" style="background-image: none !important; background-color: initial !important; text-align: left !important; float: none !important; vertical-align: baseline !important; height: auto !important; width: auto !important; line-height: 1.1em !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-style: normal !important; font-size: 1em !important; direction: ltr !important; padding: 0px !important; margin: 0px !important;"><div class="line alt1" style="background-image: none !important; background-color: #ffffff !important; text-align: left !important; float: none !important; vertical-align: baseline !important; height: auto !important; width: auto !important; line-height: 1.1em !important; font-family: Consolas, 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important; font-style: normal !important; font-size: 1em !important; direction: ltr !important; padding: 0px !important; margin: 0px !important;"><?php echo $_SERVER["HTTP_USER_AGENT"]; ?>
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