There are many User Agent string parsers out there, many PHP ones infact, but none of what I tested were able to do all of the following.
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1))
This is why I set about building my own. I don’t guarantee it to be perfect, but it works for my needs. I strongly welcome forking and pull requests through Github for any changes.
Comments are more than welcome below.
Known Limitations
View the test suite of User Agents I'm currently running it against here.
<?php
/**
* Parses a user agent string into its important parts
*
* @author Jesse G. Donat <donatj@gmail.com>
* @link https://github.com/donatj/PhpUserAgent
* @link http://donatstudios.com/PHP-Parser-HTTP_USER_AGENT
* @param string $u_agent
* @return array an array with browser, version and platform keys
*/
function parse_user_agent( $u_agent = null ) {
if(is_null($u_agent) && isset($_SERVER['HTTP_USER_AGENT'])) $u_agent = $_SERVER['HTTP_USER_AGENT'];
$data = array(
'platform' => null,
'browser' => null,
'version' => null,
);
if(!$u_agent) return $data;
if( preg_match('/\((.*?)\)/im', $u_agent, $parent_matches) ) {
preg_match_all('/(?P<platform>Android|CrOS|iPhone|iPad|Linux|Macintosh|Windows(\ Phone\ OS)?|Silk|linux-gnu|BlackBerry|PlayBook|Nintendo\ (WiiU?|3DS)|Xbox)
(?:\ [^;]*)?
(?:;|$)/imx', $parent_matches[1], $result, PREG_PATTERN_ORDER);
$priority = array('Android', 'Xbox');
$result['platform'] = array_unique($result['platform']);
if( count($result['platform']) > 1 ) {
if( $keys = array_intersect($priority, $result['platform']) ) {
$data['platform'] = reset($keys);
}else{
$data['platform'] = $result['platform'][0];
}
}elseif(isset($result['platform'][0])){
$data['platform'] = $result['platform'][0];
}
}
if( $data['platform'] == 'linux-gnu' ) { $data['platform'] = 'Linux'; }
if( $data['platform'] == 'CrOS' ) { $data['platform'] = 'Chrome OS'; }
preg_match_all('%(?P<browser>Camino|Kindle(\ Fire\ Build)?|Firefox|Safari|MSIE|AppleWebKit|Chrome|IEMobile|Opera|OPR|Silk|Lynx|Version|Wget|curl|NintendoBrowser|PLAYSTATION\ (\d|Vita)+)
(?:;?)
(?:(?:[/ ])(?P<version>[0-9A-Z.]+)|/(?:[A-Z]*))%ix',
$u_agent, $result, PREG_PATTERN_ORDER);
$key = 0;
$data['browser'] = $result['browser'][0];
$data['version'] = $result['version'][0];
if( $key = array_search( 'Playstation Vita', $result['browser'] ) !== false ) {
$data['platform'] = 'PlayStation Vita';
$data['browser'] = 'Browser';
}elseif( ($key = array_search( 'Kindle Fire Build', $result['browser'] )) !== false || ($key = array_search( 'Silk', $result['browser'] )) !== false ) {
$data['browser'] = $result['browser'][$key] == 'Silk' ? 'Silk' : 'Kindle';
$data['platform'] = 'Kindle Fire';
if( !($data['version'] = $result['version'][$key]) || !is_numeric($data['version'][0]) ) {
$data['version'] = $result['version'][array_search( 'Version', $result['browser'] )];
}
}elseif( ($key = array_search( 'NintendoBrowser', $result['browser'] )) !== false || $data['platform'] == 'Nintendo 3DS' ) {
$data['browser'] = 'NintendoBrowser';
$data['version'] = $result['version'][$key];
}elseif( ($key = array_search( 'Kindle', $result['browser'] )) !== false ) {
$data['browser'] = $result['browser'][$key];
$data['platform'] = 'Kindle';
$data['version'] = $result['version'][$key];
}elseif( ($key = array_search( 'OPR', $result['browser'] )) !== false || ($key = array_search( 'Opera', $result['browser'] )) !== false ) {
$data['browser'] = 'Opera';
$data['version'] = $result['version'][$key];
if( ($key = array_search( 'Version', $result['browser'] )) !== false ) { $data['version'] = $result['version'][$key]; }
}elseif( $result['browser'][0] == 'AppleWebKit' ) {
if( ( $data['platform'] == 'Android' && !($key = 0) ) || $key = array_search( 'Chrome', $result['browser'] ) ) {
$data['browser'] = 'Chrome';
if( ($vkey = array_search( 'Version', $result['browser'] )) !== false ) { $key = $vkey; }
}elseif( $data['platform'] == 'BlackBerry' || $data['platform'] == 'PlayBook' ) {
$data['browser'] = 'BlackBerry Browser';
if( ($vkey = array_search( 'Version', $result['browser'] )) !== false ) { $key = $vkey; }
}elseif( $key = array_search( 'Safari', $result['browser'] ) ) {
$data['browser'] = 'Safari';
if( ($vkey = array_search( 'Version', $result['browser'] )) !== false ) { $key = $vkey; }
}
$data['version'] = $result['version'][$key];
}elseif( $result['browser'][0] == 'MSIE' ){
if( $key = array_search( 'IEMobile', $result['browser'] ) ) {
$data['browser'] = 'IEMobile';
}else{
$data['browser'] = 'MSIE';
$key = 0;
}
$data['version'] = $result['version'][$key];
}elseif( $key = array_search( 'PLAYSTATION 3', $result['browser'] ) !== false ) {
$data['platform'] = 'PlayStation 3';
$data['browser'] = 'NetFront';
}
return $data;
}
Thank you very much !!
Thank you!!
Wow, just what I was looking for. Looked in eight places before I found this site. The other stuff I found were all backdated. Thank you very much for making an up to date version!
Thank you so much!
Can you add platform version support?
Hi, love this clean bit of script!
thanks Donat for your great parse_user_agent function!if( $keys = array_intersect($priority, $result['platform']) ) {if( ( $data['platform'] == 'Android' && !($key = 0) ) ||elseif( $key = array_search( 'Safari', $result['browser'] ) ) {
PHP uses implicit type conversion, whereas an empty array is false-y and one containing any value is truth-y, and my code is simply taking advantage of this feature of the language to save on code.
thank you for this useful script (: