enie letter validation laravel regex
return [ 'fname' => 'required|max:255|regex:/^[a-zA-ZÑñ\s]+$/', 'lname' => 'required|max:255|regex:/^[a-zA-ZÑñ\s]+$/', 'mname' => 'max:255|alpha', 'file' => 'image|mimes:jpg,jpeg,png', 'contact_no' => 'regex:/^[-0-9\+]+$/', 'date_of_birth' => 'required|date_format:Y-m-d', 'school_id' => 'required|exists:schools,id', 'degree_id' => 'required|exists:degrees,id', ];