【转】php判断操作系统或浏览器

function userOS($user_OSagent=''){
    if(strpos($user_OSagent,"NT 6.1")) {
        $visitor_os = "Windows7";
    }elseif(preg_match('/NT 5.1/',$user_OSagent)){
        $visitor_os = "Windows XP (SP2)";
    }elseif(strpos($user_OSagent,"Windows XP")) {
        $visitor_os = "Windows XP";
    }elseif(strpos($user_OSagent,"NT 5.2") && strpos($user_OSagent,"WOW64")){
        $visitor_os = "Windows XP 64-bit Edition";
    }elseif(strpos($user_OSagent,"NT 5.2")) {
        $visitor_os = "Windows 2003";
    }elseif(strpos($user_OSagent,"NT 6.0")) {
        $visitor_os = "Windows Vista";
    }elseif(strpos($user_OSagent,"NT 5.0")) {
        $visitor_os = "Windows 2000";
    }elseif(strpos($user_OSagent,"4.9")) {
        $visitor_os = "Windows ME";
    }elseif(strpos($user_OSagent,"NT 4")) {
        $visitor_os = "Windows NT 4.0";
    }elseif(strpos($user_OSagent,"98")) {
        $visitor_os = "Windows 98";
    }elseif(strpos($user_OSagent,"95")) {
        $visitor_os = "Windows 95";
    }elseif(strpos($user_OSagent,"NT 9.0")) {
        $visitor_os = "Windows NT 9.0";
    }elseif(strpos($user_OSagent,"Mac")) {
        $visitor_os = "Mac";
    }elseif(strpos($user_OSagent,"Linux")) {
        $visitor_os = "Linux";
    }elseif(strpos($user_OSagent,"Unix")) {
        $visitor_os = "Unix";
    }elseif(strpos($user_OSagent,"FreeBSD")) {
        $visitor_os = "FreeBSD";
    }elseif(strpos($user_OSagent,"SunOS")) {
        $visitor_os = "SunOS";
    }elseif(strpos($user_OSagent,"BeOS")) {
        $visitor_os = "BeOS";
    }elseif(strpos($user_OSagent,"OS/2")) {
        $visitor_os = "OS/2";
    }elseif(strpos($user_OSagent,"PC")) {
        $visitor_os = "Macintosh";
    }elseif(strpos($user_OSagent,"AIX")) {
        $visitor_os = "AIX";
    }elseif(strpos($user_OSagent,"IBM OS/2")) {
        $visitor_os = "IBM OS/2";
    }elseif(strpos($user_OSagent,"BSD")) {
        $visitor_os = "BSD";
    }elseif(strpos($user_OSagent,"NetBSD")) {
        $visitor_os = "NetBSD";
    }elseif(preg_match('/Apple/i',$user_OSagent)) {
        $visitor_os = "Applepc";
    }elseif(strpos($user_OSagent,"NT 6.1")) {
        $visitor_os = "Windows7";
    }elseif(preg_match('/Opera/i',$user_OSagent)) {
        $visitor_os = "Opera";
    }elseif(preg_match('/Nokia/i', $user_OSagent)) {
        $visitor_os = "nokia";
    }elseif(preg_match('/OPPO/i', $user_OSagent)) {
        $visitor_os = "OPPO ";
    }elseif(preg_match('/SymbianOS/i', $user_OSagent)) {
        $visitor_os = "SymbianOS ";
    }elseif(preg_match('/Windows Mobile/i', $user_OSagent)) {
        $visitor_os = "Windows Mobile";
    }elseif(preg_match('/DoCoMo/i',$user_OSagent)){
        $visitor_os = "DoCoMo";
    }elseif(strpos($user_OSagent,"Red Hat")) {
        $visitor_os = "linux";
    }elseif(preg_match('/SonyEricsson/i',$user_OSagent)) {
        $visitor_os = "SonyEricsson";
    }elseif(preg_match('/Lynx/i',$user_OSagent)) {
        $visitor_os = "Lynx";
    }elseif(preg_match('/ucweb|MQQBrowser|J2ME|IUC|3GW100|LG-MMS|i60|Motorola|MAUI|m9|ME860|maui|C8500|gt|k-touch|X8|htc|GT-S5660|UNTRUSTED|SCH|tianyu|lenovo|SAMSUNG/i',$user_OSagent)) {
        $visitor_os = "mobile";
    }else{
        $visitor_os =$user_OSagent;
    }
    return $visitor_os;
}

function userBrowser($user_OSagent){
    if(strpos($user_OSagent,"Maxthon") && strpos($user_OSagent,"MSIE")) {
        $visitor_browser ="Maxthon(Microsoft IE)";
    }elseif(strpos($user_OSagent,"Maxthon 2.0")) {
        $visitor_browser ="Maxthon 2.0";
    }elseif(strpos($user_OSagent,"Maxthon")) {
        $visitor_browser ="Maxthon";
    }elseif(strpos($user_OSagent,"MSIE 7.0")) {
        $visitor_browser ="IE7";
    }elseif(strpos($user_OSagent,"MSIE 6.0")) {
        $visitor_browser ="IE6";
    }elseif(strpos($user_OSagent,"MSIE 5.5")) {
        $visitor_browser ="IE5";
    }elseif(strpos($user_OSagent,"MSIE 5.0")) {
        $visitor_browser ="IE5";
    }elseif(strpos($user_OSagent,"MSIE 4.01")) {
        $visitor_browser ="IE4";
    }elseif(strpos($user_OSagent,"MSIE 8.0")) {
        $visitor_browser ="IE8";
    }elseif(strpos($user_OSagent,"MSIE 9.0")) {
        $visitor_browser ="IE9";
    }elseif(strpos($user_OSagent,"NetCaptor")) {
        $visitor_browser ="NetCaptor";
    }elseif(strpos($user_OSagent,"Netscape")) {
        $visitor_browser ="Netscape";
    }elseif(strpos($user_OSagent,"Lynx")) {
        $visitor_browser ="Lynx";
    }elseif(strpos($user_OSagent,"Opera")) {
        $visitor_browser ="Opera";
    }elseif(strpos($user_OSagent,"Konqueror")) {
        $visitor_browser ="Konqueror";
    }elseif(strpos($user_OSagent,"Mozilla/5.0")) {
        $visitor_browser ="Mozilla";
    }elseif(preg_match('/ucweb/i', $user_OSagent)) {
        $visitor_browser ="ucweb";
    }elseif(preg_match('/Opera/i', $user_OSagent)) {
        $visitor_browser ="Opera";
    }elseif(preg_match('/SonyEricsson/i', $user_OSagent)) {
        $visitor_browser ="SonyEricsson";
    }elseif(preg_match('/Apple/i',$user_OSagent)) {
        $visitor_browser ="Apple";
    }elseif(preg_match('/OPPO/i',$user_OSagent)) {
        $visitor_browser ="OPPO";
    }elseif(strpos($user_OSagent,"i60")) {
        $visitor_browser ="lenovo i60";
    }elseif(preg_match('/Nokia/i', $user_OSagent)) {
        $visitor_browser ="nokia";
    }elseif(strpos($user_OSagent,"LG-MMS")) {
        $visitor_browser ="LG-BROWSER";
    }elseif(strpos($user_OSagent,"SMIT-BROWSER")) {
        $visitor_browser ="SMIT-BROWSER";
    }elseif(preg_match('/zet/i', $user_OSagent)) {
        $visitor_browser ='ZET-BROWSER';
    }elseif(preg_match('/Lynx/i', $user_OSagent)) {
        $visitor_browser ='Lynx';
    }elseif(strpos($user_OSagent,"Firefox")) {
        $visitor_browser ="Firefox";
    }elseif(strpos($user_OSagent,"U")) {
        $visitor_browser ="Firefox";
    }else {
        $visitor_browser ="$user_OSagent";
    }
    return $visitor_browser;
}