thisDevice()

function thisDevice() {
    $useragent=$_SERVER['HTTP_USER_AGENT'];
    if(substr_count($useragent,'iPad')>0) {
        $device['specific'] = 'iPad';
        $device['general'] = 'tablet';
        $device['vague'] = 'mobile';
    } else if(substr_count($useragent,'iPhone')>0||substr_count($useragent,'iPod')>0) {
        $device['specific'] = 'iPhone';
        $device['general'] = 'phone';
        $device['vague'] = 'mobile';
    } else if(substr_count($useragent,'Android')>0) {
        if(substr_count($useragent,'Mobile')>0) {
            $device['specific'] = 'droidPhone';
            $device['general'] = 'phone';
            $device['vague'] = 'mobile';
        } else {
            $device['specific'] = 'droidTab';
            $device['general'] = 'tablet';
            $device['vague'] = 'mobile';
        }
    } else {
        $device['specific'] = 'unknown';
        $device['general'] = 'unknown';
        $device['vague'] = 'unknown';
    }
    return $device;
}