CODE EXAMPLE FOR PHP

laravel validation custom message

$rules = [
  'username' => 'required,unique:Userlogin,username',
  'password' => 'required',
  'email'    => 'required,unique:Userlogin,email'
];

$messages = [
  'required'  => 'The :attribute field is required.',
  'unique'    => ':attribute is already used'
];

$request->validate($rules,$messages);
//only if validation success code below will be executed