uninstall.php

<?php
/**
 * Copyright (C) 2019 Adshares sp. z o.o.
 *
 * This file is part of Adshares WordPress Plugin
 *
 * Adshares WordPress Plugin is free software: you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Adshares WordPress Plugin 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Adshares WordPress Plugin. If not, see
 * <https://www.gnu.org/licenses/>
 */

// Exit if accessed directly
if (!defined('WP_UNINSTALL_PLUGIN')) {
    exit;
}

/** Delete all the Plugin Options */
delete_option('quads_settings');
delete_option('quads_sites');