获取访问者浏览器

<?
function browse_infor() 
{
$browser="";$browserver="";
//powered by xujiajay
$Browsers =array("Lynx","MOSAIC","AOL","Opera","JAVA","MacWeb","WebExplorer","OmniWeb");
$Agent = $GLOBALS["HTTP_USER_AGENT"]; 
for ($i=0; $i<=7; $i++) //开源代码powered by xujiajay 
{
if (strpos($Agent,$Browsers[$i])) 
{
$browser = $Browsers[$i]; 
$browserver =""; 
}
}
if (ereg("Mozilla",$Agent) && !ereg("MSIE",$Agent)) //开源代码powered by xujiajay 
{
$temp =explode("(", $Agent); $Part=$temp[0]; 
$temp =explode("/", $Part); $browserver=$temp[1];
//powered by xujiajay开源
$temp =explode("",$browserver); $browserver=$temp[0]; 
$browserver =preg_replace("/([d.]+)/","1",$browserver); 
$browserver ="$browserver"; //powered by xujiajay 
$browser ="Netscape Navigator"; 
}
if (ereg("Mozilla",$Agent) && ereg("Opera",$Agent)) 
{
$temp =explode("(", $Agent); $Part=$temp[1];
//PHP开源代码
$temp =explode(")", $Part); $browserver=$temp[1]; 
$temp =explode("",$browserver);$browserver=$temp[2];
//开源代码powered by xujiajay
$browserver =preg_replace("/([d.]+)/","1",$browserver); 
$browserver ="$browserver"; 
$browser ="Opera"; 
}
if (ereg("Mozilla",$Agent) && ereg("MSIE",$Agent))
//PHP开源代码
{
$temp = explode("(", $Agent); $Part=$temp[1]; 
$temp = explode(";",$Part); $Part=$temp[1]; //powered by xujiajay 
$temp = explode("",$Part);$browserver=$temp[2]; 
$browserver =preg_replace("/([d.]+)/","1",$browserver); 
$browserver ="$browserver"; //powered by xujiajay 
$browser ="Internet Explorer"; 
}
if ($browser!="") 
{
$browseinfo ="$browser$browserver"; 
}
else
{
$browseinfo ="Unknown"; 
}
return $browseinfo; 
}
//调用方法$browser=browseinfo() ;直接返回结果 
?> //开源powered by xujiajay