In this code fragment from controllers/registration/store.php

$user = $db->query('select * from users where email = :email', [
    'email' => $email
])->find();

if ($user) {
    header('location: /');
    exit();
} else {
    $db->query('INSERT INTO users(email, password) VALUES(:email, :password)', [
        'email' => $email,
        'password' => password_hash($password, PASSWORD_BCRYPT)
    ]);

    login($user);

    header('location: /');
    exit();
}

We know that in the else branch, $user is false. So, we pass false to the login() function, right? How come the code still works for you, then? I get Warning: Trying to access array offset on value of type bool in /var/www/html/Core/functions.php on line 52 which is why I started wondering about this in the first place.

Instead of login($user), I changed it to

login([
    'email' => $email
]);

like in controllers/sessions/store.php.

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