Сокеты на php (help)

<? php
    function Ping(){
        // false proxy used to generate connection error
        $ProxyServer = "116.155.95.163";
        $ProxyPort = 8080;
        $timeout=10;
        echo "Opening ProxyServer $ProxyServer<br>";
        // must use next two statements
        Set_Time_Limit(0);  //Time for script to run .. not sure how it works with 0 but you need it
        Ignore_User_Abort(True); //this will force the script running at the end
       
        $handle = fsockopen($ProxyServer, $ProxyPort,$errno,$errstr,$timeout);        
        if (!$handle){
            echo "Failed to open ProxyServer $ProxyServer errno=$errno,errstr=$errstr<br>";
            return 0;
        }
        else {
            // copied method for PING like time operation
            $status = socket_get_status($handle);
            echo "Opened ProxyServer $ProxyServer<br>";
           
            //Time the responce
            list($usec, $sec) = explode(" ", microtime(true));
            $start=(float)$usec + (float)$sec;
           
           
            $timeout=120;
            stream_set_timeout($handle,$timeout);      
            //send somthing
            ini_set('display_errors','0');
            $write=fwrite($handle,"echo this\n");
            if(!$write){
                return 0;
            }
           
            echo "Try To Read<br>";
            stream_set_blocking($handle,0);  
            //Try to read. the server will most likely respond with a "ICMP Destination Unreachable" and end the read. But that is a responce!
            fread($handle,1024);
            fclose($handle);
            echo "Read<br>";
            ini_set('display_errors','1');
                 
            //Work out if we got a responce and time it          
            list($usec, $sec) = explode(" ", microtime(true));
            $laptime=((float)$usec + (float)$sec)-$start;
            if($laptime>$timeout)
                return 0;
            //else  
            //    $laptime = round($laptime,3);
            return $laptime;
        }
    }

    // must use ErrorHandler to avoid php error being printed to screen
    function userErrorHandler($errno, $errmsg, $filename, $linenum, $vars)
    {
       // you can set this to what ever you like.
       echo "In Error Handler<br>";
       return 0;
    }

    $old_error_handler = set_error_handler("userErrorHandler");

    $time = Ping();
    echo "Time=$time<br>";
    echo "Done Checking<br>";
?>