问PHP查询超时

EN

    $host = 10.1.1.5; //Host is online, but may be hung trying to shutdown

    //Check if host is online
    if(@$fp = fsockopen($host,135,$errCode,$errStr,0.1))
    {
        //Create new connection
        $WbemLocator = new COM ("WbemScripting.SWbemLocator");

        //Connect to remote workstation
        $WbemServices = $WbemLocator->ConnectServer($host, 'root\\cimv2',$user,$password);  
        $WbemServices->Security_->ImpersonationLevel = 3;

        //Basic WMI query
        $system = $WbemServices->execQuery("Select * from Win32_ComputerSystem");   

        foreach($pcsystem AS $n){

            $hostname = $n->Name; //Hostname

        }

        //Process all data ->Insert into DB
    }
//Move on to next machine. In this case, the script will never move on