Supported Versions: PHP 5 >= 5.1.2, PHP 7, PHP 8, PECL hash >= 1.1
Generate a hash value (message digest)
<?php hash(    string $algo,    string $data,    bool $binary = false,    array $options = []): string
<?php         $realCacheKey = 'query=' . $sql .

            '&params=' . serialize($params) .

            '&types=' . serialize($types) .

            '&connectionParams=' . hash('sha256', serialize($connectionParams));




        if ($this->cacheKey === null) {