SOAP XML inside XML - How to parse with PHP - php

Question

I've searched in the SO, but nothing what i've found could help me.
I'm doing system integration with JadLog, a freight service.
When I pass the query with the product and delivery variables, an XML is returned.
Return example:
<?xml version="1.0" encoding="UTF-8"?>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<soapenv:Body>
<valorarResponse xmlns="">
<ns1:valorarReturn xmlns:ns1="http://jadlogEdiws">
<?xml version="1.0" encoding="utf-8" ?>
<string xmlns="http://www.jadlog.com.br/JadlogEdiWs/services">
<Jadlog_Valor_Frete>
<versao>1.0</versao>
<Retorno>1458,62</Retorno>
<Mensagem>Valor do Frete</Mensagem>
</Jadlog_Valor_Frete>
</string>
</ns1:valorarReturn>
</valorarResponse>
</soapenv:Body>
</soapenv:Envelope>
So, there is more than one XML declaration, right?
The only value that I need is the value of the freight, wich is in the tag Retorno. I this case, 1458,62.
What am I trying to do:
$your_xml_response = file_get_contents($url_project);
$clean_xml = str_replace('soapenv:', '', $your_xml_response);
$xml = simplexml_load_string($clean_xml);
var_dump($xml);
What its returns:
object(SimpleXMLElement)[1]
public 'Body' =>
object(SimpleXMLElement)[2]
public 'valorarResponse' =>
object(SimpleXMLElement)[3]
If I try to echo $xml->Retorno, it Returns empty.
How can I get the value of tag Retorno?

Answer 1

When I tried to load your XML string with simplexml_load_string it causes me
There is more than one XML declaration which is not allowed in xml . That's why I used regular express to get Retorno value. May be its not the best approach to use regex on XML but you can make a try.
<?php
$re = '/<Retorno>(.*?)<\/Retorno>/m';
$str = '<?xml version="1.0" encoding="UTF-8"?>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<soapenv:Body>
<valorarResponse xmlns="">
<ns1:valorarReturn xmlns:ns1="http://jadlogEdiws">
<?xml version="1.0" encoding="utf-8" ?>
<string xmlns="http://www.jadlog.com.br/JadlogEdiWs/services">
<Jadlog_Valor_Frete>
<versao>1.0</versao>
<Retorno>1458,62</Retorno>
<Mensagem>Valor do Frete</Mensagem>
</Jadlog_Valor_Frete>
</string>
</ns1:valorarReturn>
</valorarResponse>
</soapenv:Body>
</soapenv:Envelope>
';
preg_match_all($re, $str, $matches);
//debugging
print '<pre>';
print_r($matches);
print '<pre>';
//result
echo $matches[0][0];