Zend Framework缓存Cache用法简单实例

<?php
require 'zend/loader.php';
zend_loader::loadclass('zend_cache');
zend_loader::loadclass('zend_config');
zend_loader::loadclass('zend_registry');
$config = new zend_config_ini('configsecr/config.ini');
define('cache_dir',fdroot.'/'.'tmp/');
/*
配置文件config.ini：
[cache]
cache.needcache=1
cache.frontend.name=core
cache.frontend.lifetime=7200
cache.frontend.automatic_serialization=1
cache.backend.name=file
*/
/*选项参考手册*/
/*建立cache对象*/
$frontendoptions = $config->cache->cache->frontend->toarray();
$backendoptions = $config->cache->cache->backend->toarray();
$frontendname = $frontendoptions['name'];
unset($frontendoptions['name']);
$backendname = $backendoptions['name'];
unset($backendoptions['name']);
if (empty($backendoptions['cache_dir']))
{
 $backendoptions['cache_dir'] = cache_dir;
}
$_cache = zend_cache::factory($frontendname, $backendname, $frontendoptions, $backendoptions);
zend_registry::set('cache', $_cache);
/*使用cache*/
$viewrenderer = $_cache->load('viewrenderer'); //试图从缓存加载变量
if (!$viewrenderer instanceof something)//加载不成功
{
 $viewrenderer = new something();
 /*some other work*/
 $_cache->save($viewrenderer, 'viewrenderer');//保存变量到换存
}
/*这只是一种应用，还可以轻松缓存整页；也可将缓存存到数据库或者内存。*/
?>