class.ilStaticCache.php

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<?php

class ilStaticCache extends ilGlobalCacheService
{
    protected function getActive(): bool
    {
        return true;
    }

    protected function getInstallable(): bool
    {
        return true;
    }

    protected static array $cache = [];

    public function exists(string $key): bool
    {
        return isset(self::$cache[$this->getComponent()][$key]);
    }

    public function set(string $key, $serialized_value, int $ttl = null): bool
    {
        self::$cache[$this->getComponent()][$key] = $serialized_value;
        return true;
    }

    public function get(string $key)
    {
        return self::$cache[$this->getComponent()][$key] ?? null;
    }

    public function delete(string $key): bool
    {
        unset(self::$cache[$this->getComponent()][$key]);

        return true;
    }

    public function flush(bool $complete = false): bool
    {
        if ($complete) {
            self::$cache = [];
        } else {
            unset(self::$cache[$this->getComponent()]);
        }

        return true;
    }

    public function serialize($value)
    {
        return ($value);
    }

    public function unserialize($serialized_value)
    {
        return ($serialized_value);
    }
}