Introduction and use of yii2 cache yii2.0 Chinese manual yii2.0 tutorial yii Chinese manual

Author: Bailang Source: http://www.manks.top/yii2_cache.html The copyright of this article belongs to the author, and you are welcome to reprint it. However, this statement must be retained without the author’s consent, and a link to the original text must be provided in an obvious position on the article page. Otherwise, we reserve the right to pursue legal liability.

A good framework is definitely inseparable from the use of cache. On the contrary, a framework without cache is definitely not a good framework. It seems to mean the same thing. Regardless, let's first take a look at how caching is used in yii2. .

It’s time for our first step again. Let’s configure the components first.

For convenience, our cache component is configured in the commonconfigmain.php file. First, let’s simply configure the file cache

'components' => [ <br>　　'cache' => [ <br>　　　　'class' => 'yii\caching\FileCache', <br>　　　　'cachePath' => '@runtime/cache2', <br>　　], <br>],

<span>所谓的文件缓存，其实就是把我们要缓存的数据存放到文件内，那数据又缓存到哪里了呢？</span>

//The default cache path is in the @appruntimecache directory. If you want to modify the cache path, you can Just configure the cachePath like the above configuration

Let’s take a look directly

<span>$cache</span> = Yii::<span>$app</span>-><span>cache; 
</span><span>$data</span> = <span>$cache</span>->get('cache_data_key'<span>); 
</span><span>if</span> (<span>$data</span> === <span>false</span><span>) { 
    </span><span>//</span><span>这里我们可以操作数据库获取数据，然后通过$cache->set方法进行缓存 </span><span>$cacheData</span> = ...... 
    <span>//</span><span>set方法的第一个参数是我们的数据对应的key值，方便我们获取到 
    //第二个参数即是我们要缓存的数据 
    //第三个参数是缓存时间，如果是0，意味着永久缓存。默认是0 </span><span>$cache</span>->set('cache_data_key', <span>$cacheData</span>, 60*60<span>); 
} 
</span><span>var_dump</span>(<span>$data</span>);

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The above introduces the introduction and use of yii2 cache, including yii content. I hope it will be helpful to friends who are interested in PHP tutorials.