Stop on First Validation Error

By default, Laravel validation errors will be returned in a list, checking all validation rules. But if you want the process to stop after the first error, use validation rule called bail:

$request->validate([
    'title' => 'bail|required|unique:posts|max:255',
    'body' => 'required',
]);

If you need to stop validation on the first error in FormRequest class, you can set stopOnFirstFailure property to true:

protected $stopOnFirstFailure = true;