una/inc/classes/BxDolCacheEAccelerator.php

<?php
/**
 * @package     Dolphin Core
 * @copyright   Copyright (c) BoonEx Pty Limited - http://www.boonex.com/
 * @license     CC-BY - http://creativecommons.org/licenses/by/3.0/
 */
defined('BX_DOL') or die('hack attempt');

bx_import('BxDolCache');

class BxDolCacheEAccelerator extends BxDolCache {

    var $iTTL = 3600;

    /**
     * constructor
     */
    function BxDolCacheEAccelerator() {
        parent::BxDolCache();
    }

    /**
     * Get data from shared memory cache
     *
     * @param string $sKey - file name
     * @param int $iTTL - time to live
     * @return the data is got from cache.
     */
    function getData($sKey, $iTTL = false) {
        $sData = eaccelerator_get($sKey);
        return null === $sData ? null : unserialize($sData);
    }
    /**
     * Save data in shared memory cache
     *
     * @param string $sKey - file name
     * @param mixed $mixedData - the data to be cached in the file
     * @param int $iTTL - time to live
     * @return boolean result of operation.
     */
    function setData($sKey, $mixedData, $iTTL = false) {
        $bResult = eaccelerator_put($sKey, serialize($mixedData), false === $iTTL ? $this->iTTL : $iTTL);
        return $bResult;
    }

    /**
     * Delete cache from shared memory
     *
     * @param string $sKey - file name
     * @return result of the operation
     */
    function delData($sKey) {

        eaccelerator_lock($sKey);

        eaccelerator_rm($sKey);

        eaccelerator_unlock($sKey);

        return true;
    }

    /**
     * Check if eAccelerator is available
     * @return boolean
     */
    function isAvailable() {
        return function_exists('eaccelerator_put');
    }

    /**
     * Check if eaccelerator extension is loaded
     * @return boolean
     */
    function isInstalled() {
        return extension_loaded('eaccelerator');
    }

    /**
     * remove all data from cache by key prefix
     * @return true on success
     */
    function removeAllByPrefix ($s) {

        $l = strlen($s);
        $aKeys = eaccelerator_list_keys();
        foreach ($aKeys as $aKey) {
            $sKey = 0 === strpos($aKey['name'], ':') ? substr($aKey['name'], 1) : $aKey['name'];
            if (0 == strncmp($sKey, $s, $l))
                $this->delData($sKey);
        }

        return true;
    }
}