PHP code example of webfiori / cache

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

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

    

webfiori / cache example snippets

WebFiori\Cache\Cache;
use WebFiori\Cache\FileStorage;
use WebFiori\Cache\KeyManager;

// Set up encryption key (recommended for production)
$_ENV['CACHE_KEY'] = KeyManager::generateKey();

// Create a cache instance
$cache = new Cache(new FileStorage('/path/to/cache'));

// Store and retrieve
$cache->set('greeting', 'Hello, World!', 3600);
echo $cache->get('greeting'); // Hello, World!

// Auto-populate on cache miss using a generator callback
$data = $cache->get('user_data', function () {
    return fetchUserDataFromDatabase();
}, 3600);

// Check, delete, flush
$cache->has('greeting');   // true
$cache->delete('greeting');
$cache->flush();

use WebFiori\Cache\Cache;
use WebFiori\Cache\FileStorage;

$cache = new Cache(new FileStorage('/path/to/cache'));

// Store with default TTL (60 seconds)
$cache->set('key', 'value');

// Store with custom TTL and override existing
$cache->set('key', 'new_value', 3600, true);

// Retrieve (returns null on miss)
$data = $cache->get('key');

// Generator with parameters
$profile = $cache->get('user_profile', function ($userId, $

$users = $cache->withPrefix('users_');
$orders = $cache->withPrefix('orders_');

$users->set('count', 100, 60);
$orders->set('count', 250, 60);

$users->get('count');  // 100
$orders->get('count'); // 250

// Flush only one prefix
$users->flush();

use WebFiori\Cache\CacheFacade;

CacheFacade::set('key', 'value', 60);
echo CacheFacade::get('key');

// withPrefix() returns a Cache instance
CacheFacade::withPrefix('users_')->set('count', 100, 60);

use WebFiori\Cache\KeyManager;

// Generate and set a key programmatically
$key = KeyManager::generateKey();
KeyManager::setEncryptionKey($key);

use WebFiori\Cache\Cache;
use WebFiori\Cache\RedisStorage;

$redis = new Redis();
$redis->connect('127.0.0.1', 6379);

$storage = new RedisStorage($redis, 'wf_cache:');
$cache = new Cache($storage);

$cache->set('key', 'value', 3600);
echo $cache->get('key'); // value

use WebFiori\Cache\Storage;
use WebFiori\Cache\Item;

class MemoryStorage implements Storage {
    public function store(Item $item) { /* ... */ }
    public function read(string $key, ?string $prefix) { /* ... */ }
    public function readItem(string $key, ?string $prefix): ?Item { /* ... */ }
    public function has(string $key, ?string $prefix): bool { /* ... */ }
    public function delete(string $key) { /* ... */ }
    public function flush(?string $prefix) { /* ... */ }
    public function purgeExpired(): int { /* ... */ }
}

$cache = new Cache(new MemoryStorage());

// v2 (static singleton)                    // v3 (instance-based)
Cache::set('k', 'v', 60);                  $cache = new Cache(new FileStorage($path));
Cache::get('k');                            $cache->set('k', 'v', 60);
                                            $cache->get('k');

Cache::withPrefix('x')->get('k');           $cache->withPrefix('x')->get('k');
// ⚠️ prefix leaked to all future calls    // ✅ prefix is scoped, original unchanged

Cache::setDriver($driver);                  $cache = new Cache($driver);

Cache::create($driver, true, 'pfx');        new Cache($driver, true, 'pfx');

use WebFiori\Cache\CacheFacade;

CacheFacade::set('k', 'v', 60);
CacheFacade::get('k');

bash
composer install
php examples/basic/01-set-and-get/index.php