Adldap\Connections\Provider::prepareConnection PHP Method

    protected function prepareConnection()
    {
        if ($this->configuration->get('use_ssl')) {
            $this->connection->ssl();
        } elseif ($this->configuration->get('use_tls')) {
            $this->connection->tls();
        }
        $this->connection->setOptions([LDAP_OPT_PROTOCOL_VERSION => $this->configuration->get('version'), LDAP_OPT_NETWORK_TIMEOUT => $this->configuration->get('timeout'), LDAP_OPT_REFERRALS => $this->configuration->get('follow_referrals')]);
    }