Commit 80bc6811 by resurtm

Docs on caching:

1. Remove unnecessary samples. 2. Add configuration file location note for basic application. 3. Fix a couple of typos.
parent 33c36f2a
...@@ -9,7 +9,8 @@ static data in cache and serving it from cache when requested, we save the time ...@@ -9,7 +9,8 @@ static data in cache and serving it from cache when requested, we save the time
Using cache in Yii mainly involves configuring and accessing a cache application component. The following Using cache in Yii mainly involves configuring and accessing a cache application component. The following
application configuration specifies a cache component that uses [memcached](http://memcached.org/) with application configuration specifies a cache component that uses [memcached](http://memcached.org/) with
two cache servers. two cache servers. Note, this configuration should be done in file located at `@app/config/web.php` alias
in case you're using basic sample application.
```php ```php
'components' => array( 'components' => array(
...@@ -33,14 +34,8 @@ two cache servers. ...@@ -33,14 +34,8 @@ two cache servers.
When the application is running, the cache component can be accessed through `Yii::$app->cache` call. When the application is running, the cache component can be accessed through `Yii::$app->cache` call.
Yii provides various cache components that can store cached data in different media. For example, Yii provides various cache components that can store cached data in different media. The following
the [[\yii\caching\MemCache]] component encapsulates the PHP [memcache](http://php.net/manual/en/book.memcache.php) is a summary of the available cache components:
and [memcached](http://php.net/manual/en/book.memcached.php) extensions and uses memory as the medium
of cache storage; the [[\yii\caching\ApcCache]] component encapsulates the PHP
[APC](http://php.net/manual/en/book.apc.php) extension; and the [[\yii\caching\DbCache]] component stores
cached data in database table.
The following is a summary of the available cache components:
* [[\yii\caching\ApcCache]]: uses PHP [APC](http://php.net/manual/en/book.apc.php) extension. This option can be * [[\yii\caching\ApcCache]]: uses PHP [APC](http://php.net/manual/en/book.apc.php) extension. This option can be
considered as the fastest one when dealing with cache for a centralized thick application (e.g. one considered as the fastest one when dealing with cache for a centralized thick application (e.g. one
...@@ -144,7 +139,7 @@ to exploit this feature. In case the underlying cache storage does not support t ...@@ -144,7 +139,7 @@ to exploit this feature. In case the underlying cache storage does not support t
To remove a cached value from cache, call [[delete()]]; and to remove everything from cache, call [[flush()]]. To remove a cached value from cache, call [[delete()]]; and to remove everything from cache, call [[flush()]].
Be very careful when calling [[flush()]] because it also removes cached data that are from other applications. Be very careful when calling [[flush()]] because it also removes cached data that are from other applications.
Note, because CCache implements ArrayAccess, a cache component can be used liked an array. The followings Note, because [[Cache]] implements `ArrayAccess`, a cache component can be used liked an array. The followings
are some examples: are some examples:
```php ```php
......
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