how to get browser info in php
function get_agent_info() {
$u_agent = $_SERVER['HTTP_USER_AGENT'];
$temp = strtolower($_SERVER['HTTP_USER_AGENT']);
$bname = 'Unknown';
$platform = 'Unknown';
$version = "";
// Get the platform
if (preg_match('/linux/i', $temp)) {
$platform = 'linux';
}
elseif (preg_match('/macintosh|mac os x/i', $temp)) {
$platform = 'mac';
}
elseif (preg_match('/windows|win32/i', $temp)) {
$platform = 'windows';
}
// Get the name of the useragent
if(preg_match('/msie/i',$temp) && !preg_match('/opera/i',$temp)) {
$bname = 'Internet Explorer';
$ub = "msie";
}
elseif(preg_match('/firefox/i',$temp)) {
$bname = 'Mozilla Firefox';
$ub = "firefox";
}
elseif(preg_match('/chrome/i',$temp)) {
$bname = 'Google Chrome';
$ub = "chrome";
}
elseif(preg_match('/safari/i',$temp)) {
$bname = 'Apple Safari';
$ub = "safari";
}
elseif(preg_match('/opera/i',$temp)) {
$bname = 'Opera';
$ub = "opera";
}
elseif(preg_match('/netscape/i',$temp)) {
$bname = 'Netscape';
$ub = "netscape";
}
$known = array('version', $ub, 'other');
$pattern = '#(?<browser>' . join('|', $known) .')[/ ]+(?<version>[0-9.|a-zA-Z.]*)#';
preg_match_all($pattern, $temp, $matches);
$i = count($matches['browser']);
if ($i != 1) {
if (strripos($temp,"version") < strripos($temp,$ub)) {
$version = $matches['version'][0];
}
else {
$version = $matches['version'][1];
}
}
else {
$version = $matches['version'][0];
}
if ($version == null || $version == "") {
$version = "?";
}
return array(
'userAgent' => $u_agent,
'browser' => $bname,
'version' => $version,
'platform' => $platform,
);
}