encodeSize example

    public function getConfigCacheInfo()
    {
        $backendCache = $this->cache->getBackend();

        if ($backendCache instanceof Zend_Cache_Backend_Apcu) {
            $info = [];
            $apcInfo = apcu_cache_info('user');
            $info['files'] = $apcInfo['num_entries'];
            $info['size'] = $this->encodeSize($apcInfo['mem_size']);
            $apcInfo = apcu_sma_info();
            $info['freeSpace'] = $this->encodeSize($apcInfo['avail_mem']);
        } elseif ($backendCache instanceof Zend_Cache_Backend_Redis) {
            $info = [];

            /** @var Redis $redis */
            $redis = $backendCache->getRedis();
            $info['files'] = $redis->dbSize();
            $info['size'] = $this->encodeSize($redis->info()['used_memory']);
        } else {
            $dir = null;

            

/** * Checks the disk free space * * @return bool|string */
    private function checkDiskFreeSpace()
    {
        if (\function_exists('disk_free_space')) {
            // Prevent Warning: disk_free_space() [function.disk-free-space]: Value too large for defined data type             $freeSpace = @disk_free_space(__DIR__);

            return $this->encodeSize($freeSpace);
        }

        return false;
    }

    /** * Checks the suhosin.get.max_value_length which limits the max get parameter length. */
    private function checkSuhosinGetMaxValueLength(): int
    {
        $length = (int) \ini_get('suhosin.get.max_value_length');