Krucas\LaravelUserEmailVerification\VerificationBroker::emailVerificationLink PHP Method

    public function emailVerificationLink(Contracts\RequiresEmailVerification $user, $token, Closure $callback = null)
    {
        $view = $this->emailView;
        return $this->mailer->send($view, compact('token', 'user'), function ($message) use($user, $token, $callback) {
            $message->to($user->getEmailForVerification());
            if (!is_null($callback)) {
                call_user_func($callback, $message, $user, $token);
            }
        });
    }