# Guide Usage Cache

The `Cache.php` file in the `system/Drivers/Cache/` directory of the **PHPFast** framework is an abstract class that provides the basic methods for managing cache. This class defines abstract methods that must be implemented by its subclasses, creating a consistent interface for storing and retrieving cached data.

## **Cache Initialization**:

* The constructor method accepts cache configuration and calls the method to connect to the specific cache driver.

## **Connecting to Cache Driver**:

* The abstract method `connect()` is used to connect to specific cache drivers such as Redis, File-based, etc.

## **Storing and Retrieving Cached Data**:

The `Cache.php` class defines the following abstract methods, which are implemented in subclasses to handle **cache operations efficiently**:

* **`set($key, $value, $ttl)`** – Stores data in the cache with a specified time-to-live (TTL).
* **`get($key)`** – Retrieves cached data using a unique key.
* **`delete($key)`** – Removes a specific item from the cache.
* **`has($key)`** – Checks if a key exists in the cache.
* **`clear()`** – Clears all cached data.

These methods ensure a **consistent and structured approach** to cache management across different caching backends.

## Configuration Cache

See more at [Configurations](/overview/install/configurations.md)

## Example Usage of `Cache.php`

### **Storing Data in Cache**

```php
<?php
// Create a cache object
$cache = new RedisCache($config);

$phpFast = 'Welcome to PHPFast Framework";

// Store data in cache with a TTL of 10 minutes (600 seconds)
$cache->set('php_fast', $phpFast, 600);
```

### **Retrieving Data from Cache**

```php
<?php
// Retrieve data from cache
$phpFast = $cache->get('php_fast');

if ($phpFast !== null) {
    // Data found in cache
    echo "Data loaded from cache.";
} else {
    // Data not found in cache, need to load from another source
    echo "Data not found in cache.";
}
```

### **Deleting Data from Cache**

```php
<?php
// Delete data from cache
$cache->delete('php_fast');
```

## Subclasses of `Cache.php`

The `Cache.php` class acts as a **parent class** for multiple subclasses, each implementing its own caching mechanism while adhering to the standard interface defined in `Cache.php`. Key subclasses include:

* &#x20;[**`UriCache.php`**](/documents/drivers/cache/uri-cache.md) – Optimizes request handling by caching URI-based data.
* &#x20;[**`RedisCache.php`**](/documents/drivers/cache/redis-cache.md) – Provides high-performance caching using Redis.
* &#x20;[**`FilesCache.php`**](/documents/drivers/cache/files-cache.md) – Implements file-based caching by storing data in structured files.

Each subclass implements the abstract methods defined in `Cache.php`, ensuring a modular and extensible caching system within the PHPFast framework.


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