Php read socket stream/push data from local app

[neal77]

I connect to an application that should give me a push/stream data.

With the following code I have a positive answer from the app (outcome=OK|ite m=THEITEM) but I can't figure out how to get the var "last_value " and its updates. The loop is commented out, I have no echo with it (infinite loop)

$port = ('5333');  
$address = ('127.0.0.1');   
$fp = stream_socket_client("tcp://$address:$port", $errno, $errstr, 1);  
if (!$fp) {  
        echo "$errstr ($errno)<br />\n";  
} else {    
        $in = "function=subscribe|item=THEITEM|schema=last_value";  
        fwrite($fp, $in."\n");  
        //while (!feof($fp)) {  
                echo fgets($fp, 1024);  
        //}  
        fclose($fp);  
}

This returns outcome=OK|item =THEITEM. The updates (push/stream data) should be like THEITEM|last_va lue.

(mac osx 10.10, mamp)