Sending XML post request using API - php

Question

I am attempting to make an xml post request which hit the other server url and post xml data their but the code not working for me here is my code
if ($mail->send()) {
$URL = "server link api based";
$ch = curl_init($URL);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/xml','Content-Length: ' . strlen($xml)));
curl_setopt($ch, CURLOPT_POSTFIELDS, $xml);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$output = curl_exec($ch);
curl_close($ch);
// echo $output;
if ($output) {
echo "1";
} else {
echo "2";
}
}
} catch (Exception $e) {
echo $e;
}
XML format of data here is the code of xml format
$xml = '<?xml version="1.0" encoding="UTF-8"?>
<data>
<lead>
<key>YaskjdfweuYksdlksid....</key>
<leadgroup>.....</leadgroup>
<site>.....</site>
<introducer>0</introducer>
<source>FDH Quick submission</source>
<medium>FDH Quick submission</medium>
<firstname>' . $firstName . '</firstname>
<lastname>' . $lastName . '</lastname>
<email>' . $userEmail . '</email>
<postcode>' . $postCode . '</postcode>
<contactphone>Yes</contactphone>
<phone1>' . $userPhoneNo . '</phone1>
</lead>
</data>';

Answer 1

1 possible issue is that you're not escaping your strings as you insert them in your XML, which might leave you with a corrupt XML file (eg, & must be escaped as &, < must become <, ' must become &apos;, and so on)
you can xml-encode strings with this function:
function xml_esacpe(string $str, string $charset = 'UTF-8'): string {
if (! strlen ( $str )) {
return "";
}
$ret = htmlspecialchars ( $str, ENT_QUOTES | ENT_SUBSTITUTE | ENT_DISALLOWED | ENT_XML1, $charset, true );
if (! strlen ( $ret )) {
throw new Exception ( "failed to xml-encode input! (most likely wrong charset or corrupted input)" );
}
return $ret;
}
furthermore, you can verify that your XML is valid by doing $isValidXML=#((new DOMDocument())->loadXML($xml)); - it will now be true if the xml is valid, or false if the xml is invalid. - is the xml you're sending actually valid xml?
but in any case, you must elaborate what you mean by the code not working for me - how is it not working?