APCu Adapter (apcu)

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APCu Adapter (apcu)#

Factory: Cache::apcu(string $namespace = 'default')

Requirements:

  • ext-apcu

  • APCu enabled (apcu_enabled())

  • for CLI usage/tests: apcu.enable_cli=1

Highlights:

  • in-memory shared cache in the PHP runtime environment

  • namespace-prefixed keys (<ns>:<key>)

  • efficient bulk fetch through APCu array fetch path

Cache::local() will choose APCu automatically when available.

Use When#

Use APCu when your cache can stay in local runtime memory and you want very low latency without network calls.

Example#

use Infocyph\CacheLayer\Cache\Cache;

$cache = Cache::apcu('app');
$cache->set('feature_flag:new_checkout', true, 60);

if ($cache->has('feature_flag:new_checkout')) {
    // fast local hit
}
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