如何使用'Mobile_Detect'类查找客户端操作系统

Question

我正在使用Mobile_Detect来查找客户端使用的OS，我厌倦了这段代码

function get(){
   $user_agent = $this->mobile_detect->getUserAgent();
   foreach($this->mobile_detect->getOperatingSystems() as $os)
   {
        if(preg_match('/('.$os.')/i',$user_agent,$matches))
        {
            $dev = '';
            for($i=0;i<count($matches);$i++){ $dev.=$matches[$i];}
            $registration_os =  $dev;
        }
   }
    print_r($registration_os);

}

$this->mobile_detect->getOperatingSystems()返回数组

 Array
(
    [AndroidOS] => Android
    [BlackBerryOS] => blackberry|bBB10b|rim tablet os
    [PalmOS] => PalmOS|avantgo|blazer|elaine|hiptop|palm|plucker|xiino
    [SymbianOS] => Symbian|SymbOS|Series60|Series40|SYB-[0-9]+|bS60b
    [WindowsMobileOS] => Windows CE.*(PPC|Smartphone|Mobile|[0-9]{3}x[0-9]{3})|Window Mobile|Windows Phone [0-9.]+|WCE;
    [WindowsPhoneOS] => Windows Phone OS|XBLWP7|ZuneWP7
    [iOS] => biPhone.*Mobile|biPod|biPad
    [MeeGoOS] => MeeGo
    [MaemoOS] => Maemo
    [JavaOS] => J2ME/|Java/|bMIDPb|bCLDCb
    [webOS] => webOS|hpwOS
    [badaOS] => bBadab
    [BREWOS] => BREW
)

但这不起作用，知道如何得到这个吗？

Answer 1

我会尝试这样的事情，因为您的正则表达式中没有任何捕获组：

function get(){
    $user_agent = $this->mobile_detect->getUserAgent();
    foreach($this->mobile_detect->getOperatingSystems() as $os => $regex ){
        if( preg_match( '/(' . $regex . ')/i', $user_agent ) ) {
            $registration_os = $os;
            break;
        }
   }
   echo $registration_os;
}