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📜  Phalcon缓存

📅  最后修改于: 2021-01-07 09:16:09             🧑  作者: Mango

快取

缓存是在Phalcon \ Cache目录下找到的类。它有助于以更快的速度访问常用数据。 Phalcon \ Cache用C编程语言编写，可减少开销。

什么时候实施Cache?

  • 当我们经常使用复杂的计算时，会返回相同的结果。
  • 当我们使用许多助手时，生成的输出总是相同的。
  • 当我们不断访问数据库数据时，其数据很少更改。

缓存过程分为2部分：

1)前端：前端检查密钥是否已过期。在存储之前和从后端检索数据之后，还应对数据进行其他转换。

2)后端：后端部分负责通信，读取或写入前端所需的数据。

实作

下面的代码通过实现前端和后端适配器，提供了2天缓存的基本缓存过程。

 172800,
    ]
);

// Create the component that will cache from the 'Output' to a 'File' backend
// Set the cache file directory - it's important to keep the '/' at the end of
// the value for the folder
$cache = new BackFile(
    $frontCache,
    [
        'cacheDir' => '../app/cache/',
    ]
);
?>

前端适配器

Adapter Description
Phalcon\Cache\Frontend\Output Read input data from standard PHP output.
Phalcon\Cache\Frontend\Data It is used to cache any kind of PHP data (big arrays, objects, text, etc). Data is serialized before stored in the backend.
Phalcon\Cache\Frontend\Base64 It’s used to cache binary data. The data is serialized using base64_encode before be stored in the backend.
Phalcon\Cache\Frontend\Json Data is encoded in JSON before be stored in the backend. Decoded after be retrieved. This frontend is useful to share data with other languages or frameworks.
Phalcon\Cache\Frontend\Igbinary It is used to cache any kind of PHP data (big arrays, objects, text, etc). Data is serialized using Igbinary before be stored in the backend.
Phalcon\Cache\Backend\Xcache Stores data in XCache.
Phalcon\Cache\Backend\None It is used to cache any kind of PHP data without serializing them.

后端适配器

Adapter Description Info Required Extension
Phalcon\Cache\Backend\Apc Stores data to the Alternative PHP Cache (APC). APC APC
Phalcon\Cache\Backend\Apcu Stores data to the APCu (APC without opcode caching) APCu APCu
Phalcon\Cache\Backend\File Stores data to local plain files
Phalcon\Cache\Backend\Mongo Stores data to Mongo Database. MongoDB MongoDB
Phalcon\Cache\Backend\Redis Stores data in Redis Redis Redis
Phalcon\Cache\Backend\Xcache Stores data in XCache. XCache XCache
Phalcon\Cache\Backend\Memcache Stores data to a memcached server. Memcache Memcache