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/>.

**/

​

​

/**

 * A class for manage values cached in "tmp" file.

 */

class CDataCacheHelper {

​

    /**

     * Cache buffer.

     *

     * @var array

     */

    protected static $data = null;

​

    /**

     * File name to store cache.

     *

     * @var string

     */

    protected const DATA_CACHE_FILE_NAME = 'zbx_config_cache';

​

    /**

     * Save value in cache.

     *

     * @param array $values  Array of key-value pairs to store in cache.

     */

    public static function setValueArray(array $values): void {

        if (self::$data === null) {

            self::loadCache();

        }

​

        foreach ($values as $key => $value) {

            self::$data[$key] = $value;

        }

​

        self::saveCache();

    }

​

    /**

     * Get cached value by particular key.

     *

     * @param string $key    Key of requested value.

     * @param type $default  (optional) Default value.

     *

     * @return mixed

     */

    public static function getValue(string $key, $default = null) {

        if (self::$data === null) {

            self::loadCache();