Zend FR

        if ($this->_request->isPost()) {
            // collect the data from the user
            Zend_Loader::loadClass('Zend_Filter_StripTags');
            $f = new Zend_Filter_StripTags();
            $username = $f->filter($this->_request->getPost('username'));
            $password = $f->filter($this->_request->getPost('password'));

            if (empty($username)) {
                $this->view->message = 'Veuillez saisir un login';
            } else {
                // setup Zend_Auth adapter for a database table
                Zend_Loader::loadClass('Zend_Auth_Adapter_DbTable');
                $dbAdapter = Zend_Registry::get('dbAdapter');
                $authAdapter = new Zend_Auth_Adapter_DbTable($dbAdapter);
                $authAdapter->setTableName('utilisateur');
                $authAdapter->setIdentityColumn('login');
                $authAdapter->setCredentialColumn('pass');
                

                // Set the input credential values to authenticate against
                $authAdapter->setIdentity($username);
                $authAdapter->setCredential($password);

                // do the authentication
                $auth = Zend_Auth::getInstance();
                $result = $auth->authenticate($authAdapter);

                if ($result->isValid()) {
                    // success: store database row to auth's storage
                    // system. (Not the password though!)
                    $data = $authAdapter->getResultRowObject(null, 'pass');
                    $auth->getStorage()->write($data);
                    $this->_redirect('/admin');
                } else {
                    // failure: clear database row from session
                    $this->view->message = 'Identification invalide';
                }
            }
        }
        $this->view->title = "Identification";
        $this->render();
    }