SimpleXML usage example

xml.php

<form method = "post">
	<p><label>Nom : <input type = "text" name = "nom" /></label></p>
	<p><label>Prenom : <input type = "text" name = "prenom" /></label></p>
	<p><label>CIN : <input type = "text" name = "cin" /></label></p>
	<p><label>Adresse : <input type = "text" name = "adresse" /></label></p>
	<p><label>Email : <input type = "text" name = "email" /></label></p>
	<p><input type = "submit" value = "Convertir" /></p>
</form>

<?php
if(!isset($_POST['nom'], $_POST['prenom'], $_POST['cin'], $_POST['adresse'], $_POST['email']))
	exit;

$str = <<<XML
<?xml version = "1.0" ?>
<utilisateurs/>
XML;
$xml = new SimpleXMLElement($str);
$user = $xml->addChild('utilisateur');
foreach($_POST as $k => $v)
	$user->addChild($k, $v);
echo '<pre>' . htmlspecialchars($xml->asXML()), '</pre>';