Validar numbrico Laravel
$rules = ['Fno' => 'numeric|min:2|max:5', 'Lno' => 'numeric|min:2'];
Zamir
$rules = ['Fno' => 'numeric|min:2|max:5', 'Lno' => 'numeric|min:2'];
$init_page = Input::get('initial_page');
$rules = [
'initial_page' => 'required_with:end_page|integer|min:1|digits_between: 1,5',
'end_page' => 'required_with:initial_page|integer|min:'. ($init_page+1) .'|digits_between:1,5'
];