SOAP request via CURL php symfony - php

Question

in one of my projects i need to send SOAP request to remote servers. For doing so i am using below script (using CURL). For some reason i am not getting any response if i ran below script.
If i try sending requests via SOAP UI, all works just like it should be. When replicating functionality in php, i get no response at all and not able to identify what the problem is.
public function sendRequestAction ($cntiin) {
$userid = 'XXXXX';
$clientid = 'YYYYY';
$password = 'Test_Test';
$urltest = 'https://y.fake.url/testServices/PersonDetailsImplService';
//variable defenition
$identifier = '700521700054';
$xml_post_string = '<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:data="http://data.fake.url.test.net">
<soapenv:Header>
<userId>3d4f80d7</userId>
</soapenv:Header>
<soapenv:Body>
<data:getPerson>
<!--Optional:-->
<iin>' . $identifier . '</iin>
<!--Optional:-->
<consentConfirmed>true</consentConfirmed>
</data:getPerson>
</soapenv:Body>
</soapenv:Envelope>';
$headers = array(
"Content-type: text/xml;charset=\"utf-8\"",
"Accept: text/xml",
"Cache-Control: no-cache",
"Pragma: no-cache",
"SOAPAction: https://y.fake.url/gbdServices/PersonDetailsImplService",
"Content-length: ".strlen($xml_post_string),
); //SOAPAction: your op URL
// PHP cURL for https connection with auth
$url = $urltest .'?wsdl';
$ch = curl_init();
//curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 1);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($ch, CURLOPT_USERPWD, $clientid.":".$password); // username and password - declared at the top of the doc
curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $xml_post_string);
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
$response = curl_exec($ch);
$code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
print_r($response);
}
When sending requests via SOAP UI there is Basic Auth with login and password, which i believe is accounted for above. Still no results
I went thruogh numerous articles including:
this one and this one and many others but still not sure why not working, so any feedback will be highly appriciated.