Yii2 缓存

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参考:http://www.yiiframework.com/doc-2.0/guide-caching-overview.html

配置

'components' => ['cache' => [            'class' => 'yii\caching\FileCache',        ],

数据缓存

$cache = \Yii::$app->cache;$cache['aa'] = '123';echo $cache['aa'];

片段缓存

<h1>朝代</h1><?php if($this->beginCache($id, ['duration' => 3600])) { ?><?phpecho ListView::widget(['dataProvider' => $dataProvider,'itemView' => '_item',]);?><?php $this->endCache(); } ?>$dependency = [    'class' => 'yii\caching\DbDependency',    'sql' => 'SELECT MAX(updated_at) FROM post',];if ($this->beginCache($id, ['dependency' => $dependency])) {    // ... generate content here ...    $this->endCache();}if ($this->beginCache($id, ['variations' => [Yii::$app->language]])) {    // ... generate content here ...    $this->endCache();}if ($this->beginCache($id1)) {    // ...content generation logic...    if ($this->beginCache($id2, $options2)) {        // ...content generation logic...        $this->endCache();    }    // ...content generation logic...    $this->endCache();}

页面缓存

class TestController extends Controller{    public function actionIndex()    {//$db = \Yii::$app->db;sleep(2);$query = Dynasty::find();$dataProvider = new ActiveDataProvider(['query' => $query,'pagination' => ['pageSize' => 15,],]);return $this->render('index', [            'dataProvider' => $dataProvider        ]);    }public function behaviors(){return [['class' => 'yii\filters\PageCache','duration' => 60,                                'variations'=> [$_GET['page']],],];}}

动态内容

...别的HTML内容...<?php if($this->beginCache($id)) { ?>...被缓存的片段内容...    <?php $this->renderDynamic($callback); ?>...被缓存的片段内容...<?php $this->endCache(); } ?>...别的HTML内容...

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