<?php
$profile_id = $_GET['id'];

if(!is_numeric($profile_id)) {
echo '<p align="center">Sidan du försöker nå existerar inte</p>';
die();
}

if(isset($profile_id)) {
$query = 'SELECT
    gtdr_user.id AS u_id,
    gtdr_user.name AS u_name,
    gtdr_user.email AS u_email,
    gtdr_user.information AS u_information,
    gtdr_user.image AS u_image,
    gtdr_user.age AS u_age,
    gtdr_user.live AS u_live,
    gtdr_user.phone AS u_phone,

    gtdr_cars.id AS c_id,
    gtdr_cars.model AS c_model,
    gtdr_cars.img AS c_img

    FROM gtdr_user
    LEFT JOIN gtdr_cars

    ON gtdr_user.id = gtdr_cars.created_by
    WHERE gtdr_user.id='.$profile_id;
    }

$result = mysql_query($query) or die(mysql_error());
$cars = array();
while ($resultdata = mysql_fetch_object($result)) {
    $cars[] = $resultdata;
}
    echo $resultdata->u_name;
    echo '<br>';
foreach($cars as $car) {
    echo $car->c_model;
    echo '<br>';
    }
?>