Example of YII Framework Page Caching Operation

This article illustrates the YII framework page caching operation. Share it for your reference, as follows:

IndexController.php

namespace frontend\controllers;
use yii;
use yii\web\Controller;
class IndexController extends Controller
{
  public function behaviors()// Prior to action Execute , Can be used to implement page caching 
  {
    return [
     [
       'class'=>'yii\filters\PageCache',// Full page cache 
       'duration'=>10,// Cache time 
       'only'=>['cache'],// Only index Actions are cached, even if there is no view display 
       'dependency'=>[
         'class'=>'yii\caching\DbDependency',
         'sql'=>'select count(*) from user',
       ],
     ]
    ];
  }
  public function actionCache(){
    // Fragment cache 
    return $this->renderPartial("index");
  }
}

views/index/index.php

<?php
/**
 * Created by PhpStorm.
 * Date: 2016/5/25
 * Time: 19:37
 */
$duration = 15;
// Cache dependency 
  $dependency = [
    'class'=>'yii\caching\FileDependency',
    'fileName'=>'hw.txt',//web Directory 
  ];
// Switch of cache 
$enabled = false;
?>
<?php
  //if($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> This will be cached later   Ha ha </div>
    </div>
<?php
  $this->endCache();
}?>
<div id="no_cache_div">
  <div> It will not be cached here   Lu </div>
</div>

More readers interested in Yii can check the topics of this site: "Introduction to Yii Framework and Summary of Common Skills", "Summary of Excellent Development Framework of php", "Basic Tutorial of Introduction to smarty Template", "Introduction to php Object-Oriented Programming", "Summary of Usage of php String (string)", "Introduction to php+mysql Database Operation" and "Summary of Common Database Operation Skills of php"

Hope that this article is based on Yii framework of PHP programming help.