Laravel @foreach - invalid argument supplied

Question

I am very new to Laravel and PHP, just trying to list all users in my view file like this:

@foreach ($users as $user)
    <li>{{ link_to("/users/{$user->username}", $user->username) }}</li>
@endforeach

But getting an error which says 'Invalid argument supplied for foreach()'

In my controller, I have the following function:

public function users() {
    $user = User::all();
    return View::make('users.index', ['users' => '$users']);
}

What am I doing wrong?

Answer 1

$users is not defined in your controller, but $user is. You are trying to @foreach over a variable that literally equals the string '$users'. Change:

$user = User::all();

to:

$users = User::all();

And remove the single quotes around $users:

return View::make('users.index', ['users' => $users]);

Answer 2

The answer above is correct, but since others may have the same error (which basically means that the variable you have supplied to foreach is not an array) in a different context, let me give this as another cause:

- When you have an eloquent relationship (probably a hasMany) which has the same name as a fieldin that eloquent model, and you want to loop through the items in the relationship using a foreach. You will think you are looping through the relationship yet Laravel is treating the field as having a higher precedence than the relationship. Solution is to rename your relationship (or field, whatever the case).