Php Soap request failed because of authentication error - php

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Porcellino80 wants to draw more attention to this question.
I'm a little bit out of my comfort zone. I'm trying to create a SOAP request with PHP, and I'm using the "in" famous API of KBO, here's the documentation:
https://economie.fgov.be/sites/default/files/Files/Entreprises/CBE/Cookbook-CBE-Public-Search-Webservice.pdf
So essentially everything went well, but I'm still struggling with something about the authentication, which makes me fail my entire small framework:
<?php
$endpoint = 'https://kbopub-acc.economie.fgov.be/kbopubws110000/services/wsKBOPub';
$wsdl = 'https://kbopub-acc.economie.fgov.be/kbopubws110000/services/wsKBOPub?wsdl';
$username = 'myusername';
$password = 'mypassword';
$timestamp = gmdate('Y-m-d\TH:i:s\Z');
$nonce = base64_encode(random_bytes(16));
$passwordDigest = base64_encode(sha1($nonce . $timestamp . $password, true));
$header = '
<wsse:Security xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd">
<wsse:UsernameToken>
<wsse:Username>' . $username . '</wsse:Username>
<wsse:Password Type="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordDigest">' . $passwordDigest . '</wsse:Password>
<wsse:Nonce>' . $nonce . '</wsse:Nonce>
<wsu:Created xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">' . $timestamp . '</wsu:Created>
</wsse:UsernameToken>
</wsse:Security>';
$options = array(
'soap_version' => SOAP_1_1,
'trace' => true,
'exceptions' => true,
'encoding' => 'UTF-8',
'cache_wsdl' => WSDL_CACHE_NONE,
'stream_context' => stream_context_create(array(
'http' => array(
'header' => 'Authorization: WSSE profile=' . $header,
'user_agent' => 'PHPSoapClient'
),
'ssl' => array(
'verify_peer' => false,
'verify_peer_name' => false
)
))
);
$context = stream_context_create(array(
'ssl' => array(
'verify_peer' => false,
'verify_peer_name' => false,
),
));
$options['stream_context'] = $context;
// $options = array(
// 'soap_version' => SOAP_1_1
// );
$client = new SoapClient($wsdl, $options);
// Set up the request parameters
$enterpriseNumber = '0810.002.854';
$request = array('EnterpriseNumber' => $enterpriseNumber);
// Call the SOAP operation with the request parameters
$response = $client->__soapCall('ReadEnterprise', array($request));
// Get the request and response XML
$requestXML = $client->__getLastRequest();
$responseXML = $client->__getLastResponse();
var_dump($response);
I also followed some suggestions from my PHP log file, where it was written to use a different version of the soap version: SOAP_1_1 instead of the SOAP_1_2.
What I find really challenging is the fact that I can't debug it in any way, I have no idea on how I can check the error message, or I can't have any hint in my error log file, it simply mentions the security check, but nothing much.
Has anyone had the same issue?
THanks
By the way, the error that I have encountered is the following:
[14-Feb-2023 17:09:24 UTC] PHP Fatal error: Uncaught SoapFault exception: [ns1:SecurityError] A security error was encountered when verifying the message in
Stack trace:
#0 /Users/mymac/Sites/cboxform/api-call/index.php(55): SoapClient->__soapCall('ReadEnterprise', Array)
#1 {main}
thrown in /Users/mymac/Sites/cboxform/api-call/index.php on line 55