How to use a request post data in findOneBy method - symfony

Question

I am writing a method to request a password reset in symfony
I get the email of the user from the posted value
$data = $form->getData();
$email = $data['email'];
It seems that I get the good email value and I can verify it by a
dump($email);
that returns
"firstname.name#domain.ext"
Then I try to fetch a user in the database with
$user = $this->getDoctrine()->getRepository(User::class)->findOneBy(["email" => $email]);
but the result is null.
After that I try 2 different ways and both of them work perfectly i.e. give a valid user.
1- I replace
$email = $data['email'];
with
$email = "firstname.name#domain.ext";
2-
I change the line that fetches the user with:
$user = $this->getDoctrine()->getRepository(User::class)->findOneBy(["email" => "firstname.name#domain.ext"]);
Obviously the trouble comes from the way the value is passed to the findOneBy method, not because the user is not in the database.
I would like to know what I should do to use the value I got from the Post ?
Here is my controller
/**
* #Route("/passforgotten", name="app_forgotten_password", methods="GET|POST")
*/
public function askResetPass(
Request $request,
UserPasswordEncoderInterface $encoder,
ManagerRegistry $managerRegistry,
\Swift_Mailer $mailer,
TokenGeneratorInterface $tokenGenerator
): Response {
$defaultData = ['message' => 'Type your message here'];
$form = $this->createFormBuilder($defaultData)
->add('email', EmailType::class)
->add('send', SubmitType::class)
->getForm();
$form->handleRequest($request);
if ($form->isSubmitted() && $form->isValid()) {
$data = $form->getData();
$email = $data['email'];
//alternative that works of course with a real email
//$email="firstname.name#domain.ext";
dump($email);
$user = $this->getDoctrine()->getRepository(User::class)->findOneBy(["email" => $email]);
dump($email);
dump($user);
if ($user === null) {
$this->addFlash('danger', 'Email Inconnu, recommence !');
return $this->redirectToRoute('app_register');
}
$token = $tokenGenerator->generateToken();
$manager = $managerRegistry->getManager();
try {
$user->setResetPasswordToken($token);
$manager->flush();
} catch (\Exception $e) {
$this->addFlash('warning', $e->getMessage());
return $this->redirectToRoute('home');
}
//this has not been tested yet
$url = $this->generateUrl('security/ask_reset_password', array('token' => $token), UrlGeneratorInterface::ABSOLUTE_URL);
$message = (new \Swift_Message('Rénitialisation du mot de pass'))
->setFrom(array('symfony#domain.ext'))
->setTo($user->getEmail())
->setBody('hello ask for reset pass!'
);
$mailer->send($message);
$this->addFlash('notice', 'Mail correctement envoyé !');
//this is not finished
return $this->redirectToRoute('a_route');
}
return $this->render('security/ask_reset_password.html.twig', [
'form' => $form->createView()
]);
}

Answer 1

Sorry but I was passing a misspelled email a letter l just before a b was missing and I used the form memorization of it each time. In fact it works in every case.