ตรวจสอบ browser อยากได้ code ที่ทำการตรวจสอบ browser ครับ

<?php
<?php
$useragent = $_SERVER[‘HTTP_USER_AGENT’]);

if (preg_match(‘|MSIE ([0-9].[0-9]{1,2})|’,$useragent,$matched)) {
    $browser_version=$matched[1];
    $browser = ‘IE’;
} elseif (preg_match( ‘|Opera ([0-9].[0-9]{1,2})|’,$useragent,$matched)) {
    $browser_version=$matched[1];
    $browser = ‘Opera’;
} elseif(preg_match(‘|Firefox/([0-9\.]+)|’,$useragent,$matched)) {
        $browser_version=$matched[1];
        $browser = ‘Firefox’;
} elseif(preg_match(‘|Safari/([0-9\.]+)|’,$useragent,$matched)) {
        $browser_version=$matched[1];
        $browser = ‘Safari’;
} else {
        // browser not recognized!
    $browser_version = 0;
    $browser= ‘other’;
}

print “browser: $browser $browser_version”;
?>


?>

<?php
$useragent = $_SERVER["HTTP_USER_AGENT"];

if (preg_match("|MSIE ([0-9].[0-9]{1,2})|",$useragent,$matched)) {
    $browser_version=$matched[1];
    $browser = "IE";
} elseif (preg_match( "|Opera ([0-9].[0-9]{1,2})|",$useragent,$matched)) {
    $browser_version=$matched[1];
    $browser = "Opera";
} elseif(preg_match("|Firefox/([0-9\.]+)|",$useragent,$matched)) {
        $browser_version=$matched[1];
        $browser = "Firefox";
} elseif(preg_match("|Safari/([0-9\.]+)|",$useragent,$matched)) {
        $browser_version=$matched[1];
        $browser = "Safari";
} else {
        // browser not recognized!
    $browser_version = 0;
    $browser= "other";
}

echo "browser $browser $browser_version";
?>

<?php
<?php 
//function getbrowser(){ 
$agent = $_SERVER['HTTP_USER_AGENT']; 
if(eregi("Netcaptor", $agent)){ $browser = "Netcaptor"; 
} elseif(eregi("(opera) ([0-9]{1,2}.[0-9]{1,3}){0,1}", $agent, $ver) || eregi("(opera/)([0-9]{1,2}.[0-9]{1,3}){0,1}", $agent, $ver)){ $browser = "Opera $ver[2]"; 
} elseif(eregi("(konqueror)/([0-9]{1,2}.[0-9]{1,3})", $agent, $ver)){ $browser = "Konqueror $ver[2]"; 
} elseif(eregi("(lynx)/([0-9]{1,2}.[0-9]{1,2}.[0-9]{1,2})", $agent, $ver)){ $browser = "Lynx $ver[2]"; 
} elseif(eregi("(msie) ([0-9]{1,2}.[0-9]{1,3})", $agent, $ver)){ $browser = "Internet Explorer $ver[2]"; 
} elseif(eregi("Links", $agent)){ $browser = "Lynx"; 
} elseif(eregi("(Firebird/)([0-9]{1,2}.[0-9]{1,3}){0,1}", $agent, $ver)){ $browser = "Firebird $ver[2]"; 
} elseif(eregi("(Firefox/)([0-9]{1,2}.[0-9]{1,2}.[0-9]{1,2})", $agent, $ver)){ $browser = "FireFox $ver[2]"; 
} elseif(eregi("Mozilla/5",$agent)){$browser = "Netscape 5"; 
} elseif(eregi("Gecko", $agent)){ $browser = "Mozilla"; 
} elseif(eregi("Safari",$agent)){ $browser = "OS-X Safari"; 
} elseif(eregi("(netscape6)/(6.[0-9]{1,3})", $agent, $ver)){ $browser = "Netscape $ver[2]"; 
} elseif(eregi("(Mozilla)/([0-9]{1,2}.[0-9]{1,3})", $agent, $ver)){ $browser = "Netscape $ver[2]"; 
} elseif(eregi("Galeon", $agent)){ $browser = "Galeon"; 
} elseif(eregi("(lynx)/([0-9]{1,2}.[0-9]{1,2}.[0-9]{1,2})", $agent, $ver) ){$browser = "Lynx $ver[2]"; 
} elseif(eregi("Avant Browser", $agent)){ $browser = "Avant"; 
} elseif(eregi("(omniweb/)([0-9]{1,2}.[0-9]{1,3})", $agent, $ver) ){$browser = "OmniWeb $ver[2]"; 
} elseif(eregi("ZyBorg|WebCrawler|Slurp|Googlebot|MuscatFerret|ia_archiver", $agent)){ $browser = "Web indexing robot"; 
} elseif(eregi("(webtv/)([0-9]{1,2}.[0-9]{1,3})", $agent, $ver) ){$browser = "WebTV $ver[2]"; 
} else {$browser = "Unknown";} 
//return $browser."00"; 
echo $browser;
//} 
?> 
?>