except remember user, changed all cookies to sessions.

functions/account_functions.php

@@ -22,34 +22,19 @@ function username_exists($username)
     return true;
 }
 
-function cookies($user, $time)
-{
-    setcookie('user_id', $user['user_id'], $time);
-    setcookie('username', $user['username'], $time);
-    setcookie('email', $user['email'], $time);
-    setcookie('role_id', $user['role_id'], $time);
-    setcookie('profile_picture', $user['profile_picture'], $time);
-}
-
 function logout()
 {
-    foreach (array_keys($_COOKIE) as $key) {
-        setcookie($key, '', time() - 3600, '/');
-        unset($_COOKIE[$key]);
-    }
-
-    foreach (array_keys($_SESSION) as $key) {
+    foreach (array_keys($_SESSION) as $key)
         unset($_SESSION[$key]);
-    }
 
-    header('Location: articles.php');
+    header('Location: .');
 }
 
 function login($username, $password, $stay_logged_in)
 {
     $password_hash = hash('sha256', $password);
 
-    $user = exec_stmt('SELECT user_id, username, email, role_id, profile_picture FROM user WHERE username = ? OR email = ? AND password_hash = ?', 'sss', $username, $username, $password_hash)->fetch_assoc();
+    $user = exec_stmt('SELECT user_id, username, role_id FROM user WHERE username = ? OR email = ? AND password_hash = ?', 'sss', $username, $username, $password_hash)->fetch_assoc();
 
     if ($user == null) {
         $error_msg = '
@@ -61,8 +46,8 @@ function login($username, $password, $stay_logged_in)
         return $error_msg;
     }
 
-    $time = time() + 60 * 60 * 1;
-    cookies($user, $time);
+    $_SESSION['user_id'] = $user['user_id'];
+    $_SESSION['username'] = $user['role_id'];
 
     if ($stay_logged_in) {
         $token = bin2hex(random_bytes(64));
@@ -247,7 +232,7 @@ function delete_account($user_id, $password = null, $verify_password = null)
 
         exec_stmt('DELETE FROM user WHERE user_id = ?', 'i', $user_id);
         logout();
-    } else if ($_COOKIE['role_id'] <= 2) {
+    } else if ($_SESSION['role_id'] <= 2) {
         $user = exec_stmt('SELECT user_id, profile_picture FROM user WHERE user_id = ?', 'i', $user_id)->fetch_assoc();
 
         if ($user['user_id'] == 2025) {