PHP Array Cache Adapter

5.1 version

Maintained

4.4 5.2 current 5.3 dev

Unmaintained

3.3 3.4 4.0 4.1 4.2 4.3 5.0 5.1

PHP Array Cache Adapter¶

This adapter is a high performance cache for static data (e.g. application configuration) that is optimized and preloaded into OPcache memory storage. It is suited for any data that is mostly read-only after warmup:

use Symfony\Component\Cache\Adapter\FilesystemAdapter;
use Symfony\Component\Cache\Adapter\PhpArrayAdapter;

// somehow, decide it's time to warm up the cache!
if ($needsWarmup) {
    // some static values
    $values = [
        'stats.products_count' => 4711,
        'stats.users_count' => 1356,
    ];

    $cache = new PhpArrayAdapter(
        // single file where values are cached
        __DIR__ . '/somefile.cache',
        // a backup adapter, if you set values after warmup
        new FilesystemAdapter()
    );
    $cache->warmUp($values);
}

// ... then, use the cache!
$cacheItem = $cache->getItem('stats.users_count');
echo $cacheItem->get();

Note

This adapter requires turning on the opcache.enable php.ini setting.

This work, including the code samples, is licensed under a Creative Commons BY-SA 3.0 license.