本文实例讲述了php实现的浏览器检查类。分享给大家供大家参考，具体如下：
ua = getenv(http_user_agent); $preparens = ; $parens = ; $i = strpos($this->ua,(); if ($i >= 0) { $preparens = trim(substr($this->ua,0,$i)); $parens = substr($this->ua,$i+1,strlen($this->ua)); $j = strpos($parens,)); if($j>=0) { $parens = substr($parens,0,$j); } } else { $preparens = $this->ua; } $browver = $preparens; $token = trim(strtok($parens,;)); while($token) { if($token==compatible) { } elseif(preg_match(/msie/i,$token)) { $browver = $token; } elseif(preg_match(/opera/i,$token)) { $browver = $token; } elseif(preg_match(/x11/i,$token) || preg_match(/sunos/i,$token) || preg_match (/linux/i,$token)) { $this->platform = unix; } elseif(preg_match(/win/i,$token)) { $this->platform = $token; } elseif(preg_match(/mac/i,$token) || preg_match(/ppc/i,$token)) { $this->platform = $token; } $token = strtok(;); } $msieindex = strpos($browver,msie); if($msieindex >= 0) { $browver = substr($browver,$msieindex,strlen($browver)); } $leftover = ; if(substr($browver,0,strlen(mozilla)) == mozilla) { $this->browser = netscape; $leftover=substr($browver,strlen(mozilla)+1,strlen($browver)); } elseif(substr($browver,0,strlen(lynx)) == lynx) { $this->browser = lynx; $leftover=substr($browver,strlen(lynx)+1,strlen($browver)); } elseif(substr($browver,0,strlen(msie)) == msie) { $this->browser = ie; $leftover=substr($browver,strlen(msie)+1,strlen($browver)); } elseif(substr($browver,0,strlen(microsoft internet explorer)) == microsoft internet explorer) { $this->browser = ie; $leftover=substr($browver,strlen(microsoft internet explorer)+1,strlen($browver)); } elseif(substr($browver,0,strlen(opera)) == opera) { $this->browser = opera; $leftover=substr($browver,strlen(opera)+1,strlen($browver)); } $leftover = trim($leftover); $i=strpos($leftover, ); if($i > 0) { $this->version = substr($leftover,0,$i); } else { $this->version = $leftover; } $j = strpos($this->version,.); if($j >= 0) { $this->majorver = substr($this->version,0,$j); $this->minorver = substr($this->version,$j+1,strlen($this->version)); } else { $this->majorver = $this->version; } }}//测试程序开始$test=new browserdetector;echo $test->ua.
;echo $test->browser.
;echo $test->platform.
;echo $test->version.
;echo $test->majorver.
;echo $test->minorver.
;?>
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希望本文所述对大家php程序设计有所帮助。
以上就介绍了php实现的浏览器检查类，包括了浏览器,php方面的内容，希望对php教程有兴趣的朋友有所帮助。