php 获取客户浏览器与操作系统类型

<?
function browse_infor()
{
$browser="";$browserver="";

//

//开源

$temp =explode(" ",$browserver); $browserver=$temp[0];
$browserver =preg_replace("/([d.]+)/","1",$browserver);
$browserver = " $browserver"; //
$browser = "netscape navigator";
}
if (ereg("mozilla",$agent) && ereg("opera",$agent))
{
$temp =explode("(", $agent); $part=$temp[1];

$temp =explode(")", $part); $browserver=$temp[1];
$temp =explode(" ",$browserver);$browserver=$temp[2];

$browserver =preg_replace("/([d.]+)/","1",$browserver);
$browserver = " $browserver";
$browser = "opera";
}
if (ereg("mozilla",$agent) && ereg("msie",$agent))

{
$temp = explode("(", $agent); $part=$temp[1];
$temp = explode(";",$part); $part=$temp[1]; //
$temp = explode(" ",$part);$browserver=$temp[2];
$browserver =preg_replace("/([d.]+)/","1",$browserver);
$browserver = " $browserver"; //
$browser = "internet explorer";
}
if ($browser!="")
{
$browseinfo = "$browser$browserver";
}
else
{
$browseinfo = "unknown";
}
return $browseinfo;
}
//调用方法$browser=browseinfo() ;直接返回结果
?>

====

获取访问者操作系统
<?
function osinfo() {
$os="";
$agent = $globals["http_user_agent"];
if (eregi('win',$agent) && strpos($agent, '95')) { //
$os="windows 95";
}
elseif (eregi('win 9x',$agent) && strpos($agent, '4.90')) {
$os="windows me";
}
elseif (eregi('win',$agent) && ereg('98',$agent)) {

//开源

$os="windows 98";
}
elseif (eregi('win',$agent) && eregi('nt 5.0',$agent)) {
$os="windows 2000";
}
elseif (eregi('win',$agent) && eregi('nt',$agent)) {

//开源

$os="windows nt";
}
elseif (eregi('win',$agent) && eregi('nt 5.1',$agent)) {
$os="windows xp";
}
elseif (eregi('win',$agent) && ereg('32',$agent)) {

//开源

$os="windows 32";
}
elseif (eregi('linux',$agent)) {
$os="linux";
}
elseif (eregi('unix',$agent)) {
$os="unix";
}
elseif (eregi('sun',$agent) && eregi('os',$agent)) {
$os="sunos";
}
elseif (eregi('ibm',$agent) && eregi('os',$agent)) { //
$os="ibm os/2";
}
elseif (eregi('mac',$agent) && eregi('pc',$agent)) {
$os="macintosh";
}
elseif (eregi('powerpc',$agent)) { //
$os="powerpc";
}
elseif (eregi('aix',$agent)) {
$os="aix";
}
elseif (eregi('hpux',$agent)) {
$os="hpux";

}
elseif (eregi('netbsd',$agent)) {
$os="netbsd";
}
elseif (eregi('bsd',$agent)) {
$os="bsd";
}
elseif (ereg('osf1',$agent)) {

$os="osf1";
}
elseif (ereg('irix',$agent)) {
$os="irix";
}
elseif (eregi('freebsd',$agent)) {
$os="freebsd";

//

}
if ($os=='') $os = "unknown";
return $os;
}
//调用方法$os=os_infor() ;
?>