I am using code given below. I want to submit two forms values and get both values on another page listeView(ajouterAideMat.php) . By this code only values of 2nd form fetched on another page and values of first form become null. So please tell me the correct way to get the value of both forms on another page.

ps: the first form is a fetched row I want to insert it with the 2nd form witch is an insertion form , but the button submit only the 2nd form and the 1st is null as i mentioned befor

<?php  
session_start();

$con = mysqli_connect('localhost','root','' ,'bdd_globale') or die(mysqli_error());
$idAss=$_SESSION['idAss'];
$nomAss=$_SESSION['nomAss'];


$ID=isset($_SESSION['numCDD']) ? $_SESSION['numCDD'] : '';
$nom=isset($_SESSION['nom']) ? $_SESSION['nom'] : '';
$prenom=isset($_SESSION['prenom']) ? $_SESSION['prenom'] : '';
$datenaissance=isset($_SESSION['datenaissance']) ? $_SESSION['datenaissance'] : '';
$lieunaissance=isset($_SESSION['lieunaissance']) ? $_SESSION['lieunaissance'] : '';
$adress=isset($_SESSION['adresse']) ? $_SESSION['adresse'] : '';
$numTel=isset($_SESSION['numTel']) ? $_SESSION['numTel'] : '';

$date=$_POST['date'];
$idsub=$_POST['idsub'];
$liste=$_POST['liste'];
$descp=isset($_POST['descp']) ? $_POST['descp'] : '';
$quantite=$_POST['quantite']; 


$req="INSERT INTO benificieraydrstocc( idAss,nomAss,numCDD,nom,prenom,datenaissance ,lieunaissance ,adresse,numTel ,date,idsub ,typesub,description ,quantite  ) 
values('$idAss','$nomAss','$ID','$nom','$prenom','$datenaissance','$lieunaissance','$adress' ,'$numTel', '$date','$idsub','$liste','$descp','$quantite')";
$res=mysqli_query($con,$req);
     if(! $res ) { die('Could not insert data: ' .mysqli_error($con));  }
             echo '<script type="text/javascript">'; 
echo 'alert("تمت الإضافة بنجاح");'; 
echo 'window.location.href = "listeAideMat.php";';
echo '</script>';   
            mysqli_close($con);   

?>