# XML DE SOLICITACAO
$xml = '<distNFeRS versao="%s" xmlns="http://www.portalfiscal.inf.br/nfe">';
    $xml .= '<tpAmb>%s</tpAmb>';
    $xml .= '<verAplic>%s</verAplic>';
    $xml .= '<cUF>%s</cUF>';
    $xml .= '<CNPJ>%s</CNPJ>';
    $xml .= '<solRel>';
        $xml .= '<indXML>%s</indXML>';
        $xml .= '<indEmit>%s</indEmit>';
        $xml .= '<indDest>%s</indDest>';
        $xml .= '<ultNSU>%s</ultNSU>';
    $xml .= '</solRel>';
    $xml .= '<solDFe>';
        $xml .= '<chAcesso>%s</chAcesso>';
        $xml .= '<NSUSol>%s</NSUSol>';
    $xml .= '</solDFe>';
$xml .= '</distNFeRS>';


$this->xml = sprintf(trim($xml),
    $this->versao,
    $this->ambiente,
    1,
    43,
    $this->cnpjEmpresa,
    $this->indXML,
    $this->indEmit,
    $this->indDest,
    $this->ultNSU,
    $this->chaveAcesso,
    $this->NSUSol
);

# CHAMA METODO DE ASSINATURA DE XML
$this->signXml('distNFeRS');

$oCurl = curl_init();
curl_setopt($oCurl, CURLOPT_CONNECTTIMEOUT, 10);
curl_setopt($oCurl, CURLOPT_URL, $this->url.'');
curl_setopt($oCurl, CURLOPT_PORT, 443);
curl_setopt($oCurl, CURLOPT_VERBOSE, 1);
curl_setopt($oCurl, CURLOPT_HEADER, 1);
curl_setopt($oCurl, CURLOPT_SSLVERSION, 3);
curl_setopt($oCurl, CURLOPT_SSL_VERIFYHOST, 2);
curl_setopt($oCurl, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($oCurl, CURLOPT_SSLCERT, $this->NFePHP->certKEY);
curl_setopt($oCurl, CURLOPT_SSLKEY, $this->NFePHP->priKEY);
curl_setopt($oCurl, CURLOPT_POST, 1);
curl_setopt($oCurl, CURLOPT_POSTFIELDS, $data);
curl_setopt($oCurl, CURLOPT_RETURNTRANSFER, 1);
#curl_setopt($oCurl, CURLOPT_HTTPHEADER, $parametros);
$xml = curl_exec($oCurl);
$info = curl_getinfo($oCurl);

pr($xml);
pr($info,1);

<distnfers xmlns="http://www.portalfiscal.inf.br/nfe" versao="1.10">
    <tpamb>2</tpamb>
    <veraplic>1</veraplic>
    <cuf>43</cuf>
    <cnpj>/** cnpj **/</cnpj>
    <solrel>
        <indxml>1</indxml>
        <indemit>7</indemit>
        <inddest>7</inddest>
        <ultnsu>0</ultnsu>
    </solrel>
    <signature xmlns="http://www.w3.org/2000/09/xmldsig#">
        /** signature **/
    </signature>
</distnfers>