Symfony: how to create forms dynamically in a foreach loop - symfony

Question

I have a form that contains a hidden field, it uses this field to send a variable that indicates the id of the item to remove, to the action. I have a table that displays the content of the database table 'profil', for every line there is a button "supprimer" that deletes this line, but as i said, it only deletes the first line. Apparentlu this loop creates only one form for the first item, so I want to create this form for every item in the table.
{% if profils %}
<div id="prof_table">
<table style="background-color: #f9f9f9;position: absolute;top:10vmin;left: 5vmin;"
class="table table-responsive table-bordered">
<tr>
<th style="color: #1b6d85"> Identificateur </th>
<th style="color: #1b6d85"> Libellé</th>
<th style="color: #1b6d85"> Actions</th>
</tr>
{% for profil in profils %}
<tr><td>{{ profil.id }}</td><td>{{ profil.libelle }}</td>
<td>
<button id="delete" class="btn btn-danger btn-xs">
<a data-fancybox data-src="#hidden-content3" href="javascript:;"
style="color: #ffffee;text-decoration: none;">Supprimer</a>
</button>
</td></tr>
<!-- HERE IS THE POPUP FORM TO DELETE PROFILES-->
<div style="display: none; height: 40vh; width: 30vw;" id="hidden-content3">
<span style="position:relative;top:10vmin;font-size: medium;"></span>
{% if form3 %}
<label style="display:inline-table;">
<span style="font-size: medium;">Etes vous surs de vouloir supprimer ce profil?</span>
</label>
</section>
{{ form_start(form3, { attr: {novalidate: 'novalidate'} }) }}
<section class="col-lg-9 col-md-9 col-sm-9 col-xs-9" style="position: relative; left: 5vmin;top: 6vmin">
<label style="display:inline-table;">
<span>{{form_widget(form3.idprof, {attr: { value : profil.id}} )}}</span>
</label>
</section>
<section class="col-lg-5 col-md-5 col-sm-5 col-xs-5" style="position: relative; left: 5vmin;top: 6vmin">
<span>{{ form_widget(form3.Confirmer) }}</span>
</section>
{{ form_end(form3) }}
{% endif %}
</div>
{% endfor %}
</table>
</div>
{% else %}
{{ "Aucun profil n'a été trouvé." }}
{% endif %}
/**
* #Route("/webmaster/gestProf/{idprof}", defaults={"idprof": 0},name="gestProf")
* Method ("POST")
* #Template()
*/
public function gestProfAction(Request $request)
{
$session = new Session();
$session->start();
$em=$this
->getDoctrine()
->getManager();
$repository = $em->getRepository("CNAMCMSBundle:profil");
$profils = $repository->findAll();
foreach ($profils as $prof) {
$id = $prof->getId();
$libelle = $prof->getLibelle();
}
$prof = new profil();
$form3 = $this->createFormBuilder($prof, array('csrf_protection' => false))
->setMethod("POST")
->add('idprof', 'hidden', array('mapped' => false))
->add('Confirmer', 'submit', array('attr' => array('class' => 'btn btn-primary btn-block rounded_btn', 'id' => 'login_btn',
'style' => "width:6vw;height:5vh;padding:0px 0px; position:relative;left:5vmin;top:1vmin;font-size:2vmin;")))
->getForm();
$form3->handleRequest($request);
if ($form3->isSubmitted()) {
//$idprof = $request->request->get('idprof');
$idprof = $form3->get('idprof')->getData();
$repository = $em->getRepository("CNAMCMSBundle:profil");
$prof = $repository->findOneById($idprof);
$em=$this
->getDoctrine()
->getManager();
$em->remove($prof);
$em->flush();
}
var_dump($request->getContent());
return $this->render('CNAMCMSBundle:Default:gestProf.html.twig', array('profils'=>$profils,
'form3'=>$form3->createView()
));
}