function useragent_decode($ua){

		#
		# a list of user agents, in order we'll match them.
		# e.g. we put chrome before safari because chrome also
		# claims it is safari (but the reverse is not true)
		#

		$agents = array(
			'chrome',
			'safari',
			'konqueror',
			'firefox',
			'netscape',
			'opera',
			'msie',
		);

		$engines = array(
			'webkit',
			'gecko',
			'trident',
		);

		$ua = StrToLower($ua);
		$out = array();

		$temp = useragent_match($ua, $agents);
		$out['agent']		= $temp['token'];
		$out['agent_version']	= $temp['version'];

		$temp = useragent_match($ua, $engines);
		$out['engine']		= $temp['token'];
		$out['engine_version']	= $temp['version'];


		#
		# safari does something super annoying, putting the version in the
		# wrong place like: "Version/5.0.1 Safari/533.17.8"
		#

		if ($out['agent'] == 'safari'){
			$temp = useragent_match($ua, array('version'));
			if ($temp['token']) $out['agent_version'] = $temp['version'];
		}


		return $out;
	}
function useragent_decode($ua)
{
    #
    # a list of user agents, in order we'll match them.
    # e.g. we put chrome before safari because chrome also
    # claims it is safari (but the reverse is not true)
    #
    $agents = array('edge', 'chrome', 'safari', 'konqueror', 'firefox', 'netscape', 'opera', 'msie', 'dalvik', 'blackberry');
    $engines = array('edge', 'webkit', 'gecko', 'trident', 'presto');
    $ua = StrToLower($ua);
    $out = array();
    $temp = useragent_match($ua, $agents);
    $out['agent'] = $temp['token'];
    $out['agent_version'] = $temp['version'];
    $temp = useragent_match($ua, $engines);
    $out['engine'] = $temp['token'];
    $out['engine_version'] = $temp['version'];
    #
    # safari does something super annoying, putting the version in the
    # wrong place like: "Version/5.0.1 Safari/533.17.8"
    #
    # opera does the same thing:
    # http://dev.opera.com/articles/view/opera-ua-string-changes/
    #
    if ($out['agent'] == 'safari' || $out['agent'] == 'opera') {
        $temp = useragent_match($ua, array('version'));
        if ($temp['token']) {
            $out['agent_version'] = $temp['version'];
        }
    }
    if ($out['agent'] == 'blackberry' && !$out['agent_version']) {
        if (preg_match('!blackberry(\\d+)/(\\S+)!', $ua, $m)) {
            $out['agent_version'] = $m[2];
        }
    }
    #
    # OS matching needs to do some regex transformations
    #
    $os = array('windows nt 5.1' => array('Windows', 'XP'), 'windows nt 5.2' => array('Windows', 'XP (x64)'), 'windows nt 6.0' => array('Windows', 'Vista'), 'windows nt 6.1' => array('Windows', '7'), 'windows nt 6.2' => array('Windows', '8'), 'windows nt 6.3' => array('Windows', '8.1'), 'windows nt 10.0' => array('Windows', '10'), 'android' => array('Android', ''), 'linux i686' => array('Linux', 'i686'), 'linux x86_64' => array('Linux', 'x86_64'), '(ipad; ' => array('iPad', ''), '(ipod; ' => array('iPod', ''), '(iphone; ' => array('iPhone', ''), 'blackberry' => array('Blackberry', ''));
    $out['os'] = null;
    $out['os_version'] = null;
    foreach ($os as $k => $v) {
        if (strpos($ua, $k) !== false) {
            $out['os'] = $v[0];
            $out['os_version'] = $v[1];
            break;
        }
    }
    if (in_array($out['os'], array('iphone', 'ipad', 'ipod'))) {
        if (preg_match('!os (\\d+)[._](\\d+)([._](\\d+))? like mac os x!', $ua, $m)) {
            $out['os_version'] = "{$m['1']}.{$m['2']}";
            if (!empty($m[4])) {
                $out['os_version'] .= ".{$m['4']}";
            }
        }
    }
    if ($out['os'] == 'android') {
        if (preg_match('!android (\\d+)\\.(\\d+)(\\.(\\d+))?!', $ua, $m)) {
            $out['os_version'] = "{$m['1']}.{$m['2']}";
            if (!empty($m[4])) {
                $out['os_version'] .= ".{$m['4']}";
            }
        }
    }
    if ($out['os'] == 'blackberry') {
        if (preg_match('!blackberry ?(\\d+)!', $ua, $m)) {
            $out['os_version'] = $m[1];
        }
    }
    if (is_null($out['os'])) {
        if (preg_match('!mac os x (\\d+)[._](\\d+)([._](\\d+))?!', $ua, $m)) {
            $out['os'] = 'osx';
            $out['os_version'] = "{$m['1']}.{$m['2']}";
            if ($m[4]) {
                $out['os_version'] .= ".{$m['4']}";
            }
        }
    }
    return $out;
}