PHP code example of hejunjie / cache

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

hejunjie / cache example snippets

use Hejunjie\Cache;

// Create a cache structure: Memory -> Redis -> File -> Database
$cache = new Cache\MemoryCache(
    new Cache\RedisCache(
        new Cache\FileCache(
            new MyDataSource(), // A data source that implements the DataSourceInterface.
            '[File] Cache folder path',
            '[File] Cache duration (seconds)'
        ),
        '[Redis] Configuration'
        '[Redis] Prefix'
        '[Redis] Persistent connection'
    ),
    '[Memory] Cache duration (seconds)',
    '[Memory] Cache quantity (to prevent memory overflow)'
);

$data = $cache->get('user:123'); // Automatically performs a layer-by-layer lookup, with cache misses propagating down to the underlying data source.

// Custom Data Sources - database
class MyDataSource implements \Hejunjie\Tools\Cache\Interfaces\DataSourceInterface
{
    protected DataSourceInterface $wrapped;
    
    // Constructor, no need for a constructor if it's the last layer.
    // public function __construct(
    //     DataSourceInterface $wrapped
    // ) {
    //     $this->wrapped = $wrapped;
    // }

    public function get(string $key): ?string
    {
        // Get the corresponding content from the database based on the key.
        // Return the content as a string string.

        // If the next layer returns data, store it in the current layer. If it's the last layer, the following code is not needed.
        // $content = $this->wrapped->get($key);
        // if ($content !== null) {
        //     $this->set($key, $content);
        // }
        // return $content;

    }

    public function set(string $key, string $value): bool
    {
        // Store the value in the database based on the key.
        // Return the storage result as `bool`.
    }

    public function del(string $key, string $value): void
    {
        // Perform a delete operation based on the key.
        // No need to return any value.
    }
}