获取手机型号设备名称

public function getPhoneType() {
        $ua = $this->getUA();
        if($ua!=false) {
            $str = explode(" ",$ua);
            echo "<pre>";print_r($str[3]);
        }
        else {
            Return false;

        }

 public function getUA() {
        if (isset($_SERVER["HTTP_USER_AGENT"])) {
            return $_SERVER["HTTP_USER_AGENT"];
        }
        else {
            return false;
        }

    }