Zabbix

<?php declare(strict_types = 0);

/*

** Copyright (C) 2001-2025 Zabbix SIA

**

** 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, version 3.

**

** 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 <https://www.gnu.org/licenses/>.

**/

​

​

/**

 * Session helper.

 */

class CSessionHelper {

​

    /**

     * Clear session data.

     *

     * @return boolean

     */

    public static function clear(): bool {

        return session_destroy();

    }

​

    /**

     * Check has this key in session.

     *

     * @param string $key

     *

     * @return boolean

     */

    public static function has(string $key): bool {

        return array_key_exists($key, $_SESSION);

    }

​

    /**

     * Get session data.

     *

     * @param string $key

     *

     * @return mixed

     */

    public static function get(string $key) {

        return self::has($key) ? $_SESSION[$key] : null;

    }

​

    /**

     * Add to session.

     *

     * @param string $key

     * @param mixed $value

     */

    public static function set(string $key, $value): void {

        $_SESSION[$key] = $value;

    }

​

    /**