Get User Permission Data (PDO) - php

Question

What i'm trying to do is make a function that gets a user permission level as seen here.
function userPermission($level, $conn){
try{
$sql = "SELECT * FROM `users` WHERE username = :Player AND level = :Level ";
$s = $conn->prepare($sql);
$s->bindValue(":Player", $_SESSION['username']);
$s->bindValue(":Level", $level);
$s->execute();
return true;
} catch(PDOException $e) {
error_log("PDOException: " . $e->getMessage());
return false;
}
}
and once I go to the page and input the code that should in-tile the functionality of this function. It doesn't work at all.
Here is the code that I inputted
<?php if (!userPermission('0', $conn) == 2) {
echo '<input type="radio" id="tab-7" name="tab-group-1">
<label for="tab-7">Permissions</label>';
} else {
echo '<input disabled=disabled type="radio" id="tab-7" name="tab-group-1">
<label id="disabled" for="tab-7">Permissions</label>';
}
?>
The 0 is the current level of the user and I was using that as a test, as for the == 3 that's what the rank has to be in order to access the tab
Anyways, I'm either doing this wrong or I don't know what i'm doing. I get no errors at all but the code I inputted seems unreliable.

Answer 1

Your code just execute but does not return the query result.
I modified your code a little bit as an example
function userPermission($username,$level, $conn){
try{
$sql = "SELECT `user_permission`
FROM `users`
WHERE username = :username AND level = :Level ";
$s = $conn->prepare($sql);
$s->bindValue(":username", $username);
$s->bindValue(":level", $level);
$s->execute();
$row = $s->fetch();
return $row['user_permission'];
} catch(PDOException $e) {
error_log("PDOException: " . $e->getMessage());
return -1;
}
}
Make sure the session is set also
session_start();
$usermame = $_SESSION['username'];
if (!userPermission($username,'0', $conn) == 2) {...