PHP/MySQL/AJAX - Refresh query values with AJAX - php

Question

I want my header to be consequently refreshed with fresh values from my database.
To achieve it i have created an AJAX post method:
AJAX (edited):
$(document).ready( function () {
function update() {
$.ajax({
type: "POST",
url: "indextopgame.php",
data: { id: "<?=$_SESSION['user']['id']?>"},
success: function(data) {
$(".full-wrapper").html(data);
}
});
}
setInterval( update, 5000 );
});
It should pass $_SESSION['user']['id'] to indextopgame.php every 10 seconds.
indextopgame.php looks like that:
PHP PART (edited):
<?php
session_start();
$con = new mysqli("localhost","d0man94_eworld","own3d123","d0man94_eworld");
function sql_safe($s)
{
if (get_magic_quotes_gpc())
$s = stripslashes($s);
global $con;
return mysqli_real_escape_string($con, $s);
}
if ($_SERVER['REQUEST_METHOD'] == 'POST')
{
$id = trim(sql_safe($_POST['id']));
$data = "SELECT username, email, user_role, fbid, googleid, fname, lname, avatar, energy, energymax, health, healthmax, fame, edollar, etoken, companies, workid, city, function FROM members WHERE id = $id";
$result = mysqli_query($con, $data);
if (mysqli_num_rows($result) > 0) {
while($row = mysqli_fetch_assoc($result)) {
$_SESSION['user']['user_role'] = $row["id"];
$_SESSION['user']['fbid'] = $row['fbid'];
$_SESSION['user']['googleid'] = $row['googleid'];
$_SESSION['user']['created'] = $row['created'];
$_SESSION['user']['lastlogin'] = $row['lastlogin'];
$_SESSION['user']['username'] = $row['username'];
$_SESSION['user']['fname'] = $row['fname'];
$_SESSION['user']['lname'] = $row['lname'];
$_SESSION['user']['email'] = $row['email'];
$_SESSION['user']['avatar'] = $row['avatar'];
$_SESSION['user']['energy'] = $row['energy'];
$_SESSION['user']['energymax'] = $row['energymax'];
$_SESSION['user']['health'] = $row['health'];
$_SESSION['user']['healthmax'] = $row['healthmax'];
$_SESSION['user']['fame'] = $row['fame'];
$_SESSION['user']['edollar'] = $row['edollar'];
$_SESSION['user']['etoken'] = $row['etoken'];
$_SESSION['user']['companies'] = $row['companies'];
$_SESSION['user']['workid'] = $row['workid'];
$_SESSION['user']['city'] = $row['city'];
$_SESSION['user']['function'] = $row['function'];
}
echo $_SESSION['user']['energy'];
}
}
?>
Still this wouldn't update the header with values i want, instead it just makes the header disappear. What's wrong with this code? Maybe there are other, more effective methods to refresh values from MySQL?
EDIT:
I've edited the AJAX / PHP code samples - it's working like that! But how may I echo all those variables? Echoing one after another seems to cause error again, since values will disappear from my header.
EDIT2:
Solved, I made a silly mistake with syntax... Thanks everyone for contributing!

Answer 1

You are not using the data that is sent back from the server in your ajax call:
success: function() {
$(".full-wrapper").html(data);
}
});
Should be:
success: function(data) {
^^^^ the returned data
$(".full-wrapper").html(data);
}
});
You should also check that your php script actually echoes out something useful.

Answer 2

data options is missing in success method
success: function(data) {
$(".full-wrapper").html(data);
}
Also you should have to echo that content in php file which you want to show in header.