N98\Util\Console\Helper\DatabaseHelper::getMysqlVariableValue PHP Method

    public function getMysqlVariableValue($variable)
    {
        $statement = $this->getConnection()->query("SELECT @@{$variable};");
        if (false === $statement) {
            throw new RuntimeException(sprintf('Failed to query mysql variable %s', var_export($variable, 1)));
        }
        $result = $statement->fetch(PDO::FETCH_ASSOC);
        if ($result) {
            return $result;
        }
        return false;
    }