Webdeveloping Questions

*necrobump*
I have a very wired bug, i have the following php code:
<?php
error_reporting(0);
//ini_set('display_errors', '1');
 
session_start();
$_SESSION['player']=1;
$_SESSION['game']=1;
$_SESSION['id']=1;
$verbindung = mysql_connect("localhost","sorunome",<passwd>);
mysql_select_db("risk");
 
if ($_GET['action']=="lines") {
        /*
        $num = mysql_real_escape_string($_GET['num']);
        $offset = mysql_real_escape_string($_GET['offset']);
        $loop = true;
        $counter = 0;
        $doSleep = true;
        if (max(mysql_fetch_array(mysql_query("SELECT MAX(id) FROM risk")))>=$num)
                $doSleep = false;
        $num = $num-$offset;
        if ($_SESSION['id']!==NULL) {
                while ($loop) {
                        if ($doSleep)
                                sleep(1);
                        $result = mysql_fetch_array(mysql_query("SELECT * FROM risk WHERE id='1'",$verbindung));//".($num+$counter)."
                        die(mysql_error());
                        if ($result) {
                                if ($result["player"]==$_SESSION['player'] || $result["game"]==$_SESSION['game'] || $result["player"]=="0") {
                                        echo $result["content"]."\n";
                                        $counter++;
                                } else
                                        $counter++;
                                if ($counter>$offset)
                                        $loop = false;
                        }
                }
                echo "nextLine(\"".($num+$offset+1)."\",0);";
        } else
                echo "lostConnection();";
        */
}
if ($_GET['action']=="send") {
        $request = $_GET['request'];
        if ($request=="MAP") {
                mysql_query("INSERT INTO riskserver (player,game,content) VALUES ('".$_SESSION['player']."','".$_SESSION['game']."','MAP');",$verbindung)or die(mysql_error());
        }
}
?>
And no matter how i call it I get 504 gateway timeout, yes, that big block IS commented out.