nextcloud-server/apps/settings/templates/settings/additional.php

<?php
/**
 * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
 * SPDX-License-Identifier: AGPL-3.0-or-later
 */

/** @var \OCP\IL10N $l */
/** @var array $_ */

?>

<?php foreach ($_['forms'] as $form) {
	if (isset($form['form'])) {?>
		<div id="<?php isset($form['anchor']) ? p($form['anchor']) : p('');?>"><?php print_unescaped($form['form']);?></div>
	<?php }
	} ?>