laravel validation for email match or not code example

Example 1: username or email validation in laravel

$input = $request->only('account'); // dont use all(), ever
            
$rules = [
  'account' => 'required'
];

if (filter_var($input['account'], FILTER_VALIDATE_EMAIL)) {

  $rules['account'] .= '|exists:users,email';

} else {

  $rules['account'] .= '|exists:users,username';

}

$messages = [
  'account.required' => 'Enter username or email to login.',                
];

$validator = Validator::make($input, $rules, $messages);

Example 2: email validation in laravel

$validator = Validator::make($request->all(), []);

 $validator->sometimes('email', 'unique:users,email', function ($input) {
            return $input->email !== Auth::user()->email;
        });
//@sujay