required if mentioned laravel code example
Example: rule::exists with custom message laravel
$messsages = array(
'email.required'=>'You cant leave Email field empty',
'name.required'=>'You cant leave name field empty',
'name.min'=>'The field has to be :min chars long',
);
$rules = array(
'email'=>'required|unique:content',
'name'=>'required|min:3',
);
$validator = Validator::make(Input::all(), $rules,$messsages);