Function returns boolean not string - php

Question

What I want is to return MYSQL query in a array however my code returns a bool(true).
Here is the code from code.php
require('model.php');
$id = $_POST['id'];
$password = $_POST['password'];
$user = new user();
$row = $user->check_user($id, $password);
var_dump($row);
Here is the code from model.php
class config {
public $dbhost = "localhost";
public $dbuser = "root";
public $dbpass = "";
public $dbused = "dbname";
function dbconn() {
$conn = mysqli_connect($this->dbhost,$this->dbuser,$this->dbpass,$this->dbused);
if(mysqli_connect_errno()) {
printf("Connection failed: " . mysqli_connect_error());
exit();
}
return $conn;
}
}
class user {
function check_user($id, $pass) {
$config = new config();
$conn = $config->dbconn();
$query = $conn->prepare("SELECT id, password, status FROM e_users WHERE id = ? AND password = ?");
$query->bind_param('is', $id, $pass);
try {
$query->execute();
return $query->fetch();
} catch(PDOException $e) {
die($e->getMessage());
}
}
}
I think the problem is in the $query->fetch(); because I tried return 'test'; and it works fine. Even return an array works fine.
Can anyone help me?

Answer 1

As The Blue Dog pointed out, fetch() returns a status flag, not the row itself. But fetch_assoc() will return a row.
Have a look here:
http://php.net/manual/en/mysqli-stmt.fetch.php
If you work with fetch, you need to bind the variables:
$stmt->bind_result($mySelectedValue_1, $mySelectedValue_2);
Here are examples with fetch_assoc():
http://php.net/manual/de/mysqli.quickstart.prepared-statements.php
So this should work fine:
$row = $res->fetch_assoc();