Amp\Mysql\Pool::__construct PHP Method

    public function __construct($connStr, $sslOptions = null)
    {
        if (preg_match("((?:^|;)\\s*limit\\s*=\\s*([^;]*?)\\s*(?:;|\$))is", $connStr, $match, PREG_OFFSET_CAPTURE)) {
            $limit = (int) $match[1][0];
            $connStr = substr_replace($connStr, ";", $match[0][1], strlen($match[0][0]));
        } else {
            $limit = INF;
        }
        $config = Connection::parseConnStr($connStr, $sslOptions);
        $this->connectionPool = new ConnectionPool($config, $limit);
    }