Is it possible to check a regular expression in a method?

Question

Laravel

Good afternoon.
Is it possible to check the data coming from the form with a regular expression in the method?
For example:

if ($request->has('email')) 
   $email = $request->input('email');

Is it possible to check the correctness of the email address from the email variable along the way?
I know that you can customize the validation using the form, but here and now there is such a condition!

Answer 1

What prevents you from making a Request class with validation or calling a validator right here?
Not to mention the most common validation methods in php , if you don’t look at the Laravel doc.