<?php
//原作者：epsilon7
//sonymusic(sonymusic@163.net)
class browserdetector {
var $ua = ""; //$http_user_agent的内容
var $browser= "unknown"; //浏览器类型
var $platform  = "unknown"; //操作系统
var $version= ""; //浏览器版本号
var $majorver  = ""; //浏览器主版本号
var $minorver  = ""; //浏览器副版本号
/* 构造函数开始 */
function browserdetector(){
$this->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("

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在google里搜索更多一个浏览器检查类

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