YII框架页面缓存操作示例

本文实例讲述了YII框架页面缓存操作。分享给大家供大家参考，具体如下：IndexController.phpna

本文实例讲述了YII框架页面缓存操作。分享给大家供大家参考，具体如下：

IndexController.php

namespace frontend\controllers;
use yii;
use yii\web\Controller;
class IndexController extends Controller
{
 public function behaviors()//先于action执行,可以用来实现页面缓存
 {
 return [
 [
 'class'=>'yii\filters\PageCache',//整个页面缓存
 'duration'=>10,//缓存时间
 'only'=>['cache'],//只有index操作会被缓存，即使没有视图展示也会缓存
 'dependency'=>[
 'class'=>'yii\caching\DbDependency',
 'sql'=>'select count(*) from user',
 ],
 ]
 ];
 }
 public function actionCache(){
 //片段缓存
 return $this->renderPartial("index");
 }
}

views/index/index.php

<?php
/**
 * Created by PhpStorm.
 * Date: 2016/5/25
 * Time: 19:37
 */
$duration = 15;
//缓存依赖
 $dependency = [
 'class'=>'yii\caching\FileDependency',
 'fileName'=>'hw.txt',//web目录下
 ];
//缓存的开关
$enabled = false;
?>
<?php
 //if($this->beginCache('cache_div',['duration' => $duration])){
 //if($this->beginCache('cache_div',['enabled' => $enabled])){
 if($this->beginCache('cache_div',['dependency' => $dependency])){?>
 <div id="cache_div">
 <div>这里待会会被缓存 哈哈</div>
 </div>
<?php
 $this->endCache();
}?>
<div id="no_cache_div">
 <div>这里不会被缓存 噜</div>
</div>