nextcloud-server/apps/settings/lib/SetupChecks/PhpOutputBuffering.php

<?php

declare(strict_types=1);

/**
 * @copyright Copyright (c) 2020 Daniel Kesselberg <mail@danielkesselberg.de>
 *
 * @author Daniel Kesselberg <mail@danielkesselberg.de>
 *
 * @license GNU AGPL version 3 or any later version
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 *
 */

namespace OCA\Settings\SetupChecks;

class PhpOutputBuffering {
	public function description(): string {
		return 'PHP configuration option output_buffering must be disabled';
	}

	public function severity(): string {
		return 'error';
	}

	public function run(): bool {
		$value = trim(ini_get('output_buffering'));
		return $value === '' || $value === '0';
	}
}