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<?php
declare(strict_types=1);
namespace Yiisoft\Yii\RateLimiter\Storage;
use Yiisoft\Yii\RateLimiter\Exception\CannotUseException;
final class ApcuStorage implements StorageInterface
{
public function __construct()
if (!extension_loaded('apcu') || ini_get('apc.enabled') === '0') {
throw new CannotUseException('APCu extension is not loaded or not enabled.');
}
public function saveIfNotExists(string $key, int $value, int $ttl): bool
return (bool)apcu_add($key, $value, $ttl);
public function saveCompareAndSwap(string $key, int $oldValue, int $newValue, int $ttl): bool
return (bool)apcu_cas($key, $oldValue, $newValue);
public function get(string $key): mixed
return apcu_fetch($key);
yiisoft /
rate-limiter
