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

Example Usage of Cache.php

Storing Data in Cache

<?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
// 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
// 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:

• UriCache.php – Optimizes request handling by caching URI-based data.

• RedisCache.php – Provides high-performance caching using Redis.

• FilesCache.php – 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.