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<?php
declare(strict_types=1);
namespace RateLimit;
final class ApcuRateLimiter extends AbstractElapsedTimeRateLimiter
{
public function __construct(string $keyPrefix = '')
if (!\extension_loaded('apcu')) {
throw new \RuntimeException('APCu extension is not loaded.');
}
if (\ini_get('apc.use_request_time') === '1') {
throw new \RuntimeException('APCu ini configuration "apc.use_request_time" should be set to "0".');
parent::__construct($keyPrefix);
protected function getCurrent(string $valueKey): int
return (int) \apcu_fetch($valueKey);
protected function updateCounter(string $valueKey, string $timeKey, int $interval): int
$current = \apcu_inc($valueKey, 1, $success, $interval);
if ($current === 1) {
\apcu_store($timeKey, \time(), $interval);
return $current === false ? 1 : $current;
protected function getElapsedTime(string $timeKey): int
return \time() - (int) \apcu_fetch($timeKey);
nikolaposa /
rate-limit
