echo '<pre>POST:', PHP_EOL, print_r($_POST, TRUE), '</pre>';
	
	if (!empty($_POST['submitform1'])) {
		if (CSRF::check($_POST['csrf_token'], 'form1')) {
			echo '<strong style="color:green">Form 1 OK.</strong>';
			// do something
			// ...
		} else {
			echo '<strong style="color:red">Form 1 KO!</strong>';
		}
	}