<?
function getUserAgent() 
{ 
    $u_agent = $_SERVER['HTTP_USER_AGENT']; 
    $bname = 'Unknown';
    $platform = 'Unknown';
    $version= "";
    if (preg_match('/linux/i', $u_agent)) {
        $platform = 'linux';
    }
    elseif (preg_match('/macintosh|mac os x/i', $u_agent)) {
        $platform = 'mac';
    }
    elseif (preg_match('/windows|win32/i', $u_agent)) {
        $platform = 'windows';
    }
    if(preg_match('/MSIE/i',$u_agent) && !preg_match('/Opera/i',$u_agent)) 
    { 
        $bname = 'Internet Explorer'; 
        $ub = "MSIE"; 
    } 
    elseif(preg_match('/Firefox/i',$u_agent)) 
    { 
        $bname = 'Mozilla Firefox'; 
        $ub = "Firefox"; 
    } 
    elseif(preg_match('/Chrome/i',$u_agent)) 
    { 
        $bname = 'Google Chrome'; 
        $ub = "Chrome"; 
    } 
    elseif(preg_match('/Safari/i',$u_agent)) 
    { 
        $bname = 'Apple Safari'; 
        $ub = "Safari"; 
    } 
    elseif(preg_match('/Opera/i',$u_agent)) 
    { 
        $bname = 'Opera'; 
        $ub = "Opera"; 
    } 
    elseif(preg_match('/Netscape/i',$u_agent)) 
    { 
        $bname = 'Netscape'; 
        $ub = "Netscape"; 
    }
    $known = array('Version', $ub, 'other');
    $pattern = '#(?<browser>' . join('|', $known) . ')[/ ]+(?<version>[0-9.|a-zA-Z.]*)#';
    if (!preg_match_all($pattern, $u_agent, $matches)) {
    }
    $i = count($matches['browser']);
    if ($i != 1) {
        if (strripos($u_agent,"Version") < strripos($u_agent,$ub)){
            $version= $matches['version'][0];
        }
        else {
            $version= $matches['version'][1];
        }
    }
    else {
        $version= $matches['version'][0];
    }
    if ($version==null || $version=="") {$version="?";}
    $ua = array(
        'userAgent' => $u_agent,
        'name'      => $bname,
        'version'   => $version,
        'platform'  => $platform,
        'pattern'    => $pattern
    );
    return $ua;
} 

$ua = array();
$ua = getUserAgent();
if(!function_exists('mobile'))
{
	function mobile($USERAGENT)  
	{
		if (preg_match("/mobile|android|blackberry|iphone|windows phone|tablet|ipad|playbook|opera mini/", strtolower($USERAGENT))) 
		{
			return true;
		}
		else
		{
			return false;
		}
	}
}	
if(mobile($ua['userAgent'])) {
	if(preg_match('/android/', strtolower($ua['userAgent'])))
	{
		$device = "android";
		$phone = true;
		$tablet = false;
		$scale = 1;
	}
	else if(preg_match('/iphone/', strtolower($ua['userAgent'])))
	{
		$device = "iphone";
		$phone = true;
		$tablet = false;
		$scale = 1;
	}
	else if(preg_match('/ipad/', strtolower($ua['userAgent'])))
	{				
		$device = "ipad";
		$phone = false;
		$tablet = true;
	}
} else {
	$mobile = false;
}
?>