Parsing JSON inside XML response php - php

Question

<?xml version="1.0" encoding="ISO-8859-1"?>
<SOAP-ENV:Envelope SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/">
<SOAP-ENV:Body>
<ns1:getRatesResponse xmlns:ns1="urn:rpxwsdl">
<return xsi:type="xsd:string">{"RPX":{"TITLE":"Rates From Jakarta (JAK) TO Denpasar (DPS), Weight 1 Kg","DATA":[{"SERVICE":"PAS Reguler (PSR)","FREIGHT_CHARGE":"27723","TOT_CHARGE":"27723","PRICE":"27723","DISCOUNT":"0","ETF":"N\/A","ETD":"N\/A"},{"SERVICE":"","FREIGHT_CHARGE":"0","TOT_CHARGE":"0","PRICE":"0","DISCOUNT":"0","ETF":"0","ETD":"0"}]}}</return>
</ns1:getRatesResponse>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
I have a json inside an xml response. however how do i retrieve it from the response.

Answer 1

Use the DOM classes to get the relevant text content. This will handle the entities. Then you can simply use json_decode.
For example (demo):
<?php
declare(strict_types=1);
$xml = <<<XML
<?xml version="1.0" encoding="ISO-8859-1"?>
<SOAP-ENV:Envelope SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/">
<SOAP-ENV:Body>
<ns1:getRatesResponse xmlns:ns1="urn:rpxwsdl">
<return xsi:type="xsd:string">{"RPX":{"TITLE":"Rates From Jakarta (JAK) TO Denpasar (DPS), Weight 1 Kg","DATA":[{"SERVICE":"PAS Reguler (PSR)","FREIGHT_CHARGE":"27723","TOT_CHARGE":"27723","PRICE":"27723","DISCOUNT":"0","ETF":"N\/A","ETD":"N\/A"},{"SERVICE":"","FREIGHT_CHARGE":"0","TOT_CHARGE":"0","PRICE":"0","DISCOUNT":"0","ETF":"0","ETD":"0"}]}}</return>
</ns1:getRatesResponse>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
XML;
$doc = new DOMDocument('1.0', 'ISO-8859-1');
$doc->loadXML($xml);
$xpath = new DOMXPath($doc);
$xpath->registerNamespace('ns1', 'urn:rpxwsdl');
$item = $xpath->query('/SOAP-ENV:Envelope/SOAP-ENV:Body/ns1:getRatesResponse/return');
if ($item->length > 0) {
print_r(
json_decode($item->item(0)->textContent, true, 512, JSON_THROW_ON_ERROR)
);
}