malkusch\lock\mutex\RedisMutex::release PHP Method

    protected function release($key)
    {
        /*
         * Question for Redis: Why do I have to try to delete also keys
         * which I haven't acquired? I do observe collisions of the random
         * token, which results in releasing the wrong key.
         */
        $script = '
            if redis.call("get",KEYS[1]) == ARGV[1] then
                return redis.call("del",KEYS[1])
            else
                return 0
            end
        ';
        $released = 0;
        foreach ($this->redisAPIs as $redis) {
            try {
                if ($this->evalScript($redis, $script, 1, [$key, $this->token])) {
                    $released++;
                }
            } catch (LockReleaseException $e) {
                $context = ["key" => $key, "token" => $this->token, "redis" => $this->getRedisIdentifier($redis), "exception" => $e];
                $this->logger->warning("Could not unset {key} = {token} at {redis}.", $context);
            }
        }
        return $this->isMajority($released);
    }