[PHP] 접속 브라우저 알아내기

function getBrowser() {
    $broswerList = array('MSIE', 'Chrome', 'Firefox', 'iPhone', 'iPad', 'Android', 'PPC', 'Safari', 'none');
    $browserName = 'none';

    foreach ($broswerList as $userBrowser){
        if($userBrowser === 'none') break;
        if(strpos($_SERVER['HTTP_USER_AGENT'], $userBrowser)) {
            $browserName = $userBrowser;
            break;
        }
    }
    return $browserName;
}

반환 값 = MSIE, Chrome, Firefox, iPhone, iPad, Android, PPC, Safari, none