/**
  * This method returns the user data contained in jBilling.
  *
  * @param Integer $userId The identifier for the user whose account data is being retrieved.
  * @return getUserWSResponse (UserWS) The account information, or null if the supplied userId is not assigned to an
  * 		 existing user. If the parameter is null or inexistent, a JbillingAPIException is generated.
  */
 public function getUserWS(UserWS $user)
 {
     $o = new getUserWS();
     $o->arg0 = $user->getUserId();
     return $this->invoke('getUserWS', $o);
 }
<?php

/**
 * Created by PhpStorm.
 * User: Belhassen
 * Date: 07/11/2015
 * Time: 18:04
 */
include "UserWS.php";
$login = $_POST['email'];
$nom = $_POST['nom'];
$prenom = $_POST['prenom'];
$pw = $_POST['pw'];
$tel = $_POST['telephone'];
$ville = $_POST['ville'];
$quest = $_POST['quest'];
$rep = $_POST['rep'];
$user = new UserWS($login, $pw);
$user->setUserName($nom);
$user->setUserSurname($prenom);
$user->setUserTel($tel);
$user->setUserVille($ville);
$user->inscription($quest, $rep);
    }
    public function inscription()
    {
        $flag['code'] = 0;
        $login = $_POST['email'];
        $nom = $_POST['nom'];
        $prenom = $_POST['prenom'];
        $pw = $_POST['pw'];
        $tel = $_POST['telephone'];
        $ville = $_POST['ville'];
        $quest = $_POST['quest'];
        $rep = $_POST['rep'];
        $UserDAO = new UserDAO($login, $pw);
        $UserDAO->setNom($nom);
        $UserDAO->setPrenom($prenom);
        $UserDAO->setTel($tel);
        $UserDAO->setVille($ville);
        $UserDAO->setQstSecurite($quest);
        $UserDAO->setReponseSecurite($rep);
        if ($UserDAO->query_insertion()) {
            $flag['code'] = 1;
        }
        echo json_encode($flag);
    }
}
$user = new UserWS();
if (isset($_POST['mail']) && isset($_POST['pw']) && isset($_POST['telephone']) && isset($_POST['ville']) && isset($_POST['nom']) && isset($_POST['prenom'])) {
    $user->inscription();
} else {
    $user->login();
}
<?php

/**
 * Created by PhpStorm.
 * User: Belhassen
 * Date: 30/10/2015
 * Time: 19:04
 */
//include("../covDAO/LoginDAO.php");
include "UserWS.php";
$login = $_POST['mail'];
$pw = $_POST['pw'];
//$login_date = date("Y-m-d H:i:s");
$user = new UserWS($login, $pw);
$user->login();
<?php

require_once "../src/JbillingAPIFactory.php";
$api = jbillingAPIFactory::getAPI("http://*****:*****@test.com");
$ContactWS->setAddress1("123 Anywhere St");
$ContactWS->setCity("Some City");
$ContactWS->setStateProvince("Some State");