Mit PHP autodiscover Antwort auslesen

<?php
// uncomment for debugging
// error_reporting(E_ALL);
// ini_set('display_errors','On'); 

$email = 'user@domain.tlld';  
$username = 'DOMAIN\user';  
$password = 'Passw0rd';  
$domain = 'domain.tld';  

$body = <<<EOF
<?xml version="1.0" encoding="utf-8" ?>  
<Autodiscover xmlns="http://schemas.microsoft.com/exchange/autodiscover/outlook/requestschema/2006">  
  <Request>
    <EMailAddress>$email</EMailAddress>
    <AcceptableResponseSchema>http://schemas.microsoft.com/exchange/autodiscover/outlook/responseschema/2006a</AcceptableResponseSchema>
  </Request>
</Autodiscover>
EOF;

$ch = curl_init("https://$domain/Autodiscover/Autodiscover.xml");  
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS,$body);
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
curl_setopt($ch, CURLOPT_USERNAME, $username);
curl_setopt($ch, CURLOPT_PASSWORD, $password);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: text/xml',"X-User-Identity: $email","X-AnchorMailbox: $email"));  
if ( !($result = curl_exec($ch)) ) {
echo "CURL REQUEST ERROR (" . curl_getinfo($ch,CURLINFO_RESPONSE_CODE ) .') : ' . curl_error($ch);  
  curl_close($ch);
  exit;
}
curl_close($ch);
$xml = new SimpleXMLElement($result);
var_dump($xml);
?>

curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);

# uname -a
FreeBSD freebsd 13.1-RELEASE FreeBSD 13.1-RELEASE releng/13.1-n250148-fc952ac2212 GENERIC amd64

# httpd -v
Server version: Apache/2.4.54 (FreeBSD)
Server built:   unknown

# php -m

[PHP Modules]
Core
curl
date
hash
libxml
mysqli
mysqlnd
pcre
Reflection
SimpleXML
SPL
standard
xml

# pkg info

apache24-2.4.54                Version 2.4.x of Apache web server
apr-1.7.0.1.6.1_2              Apache Portability Library
bash-5.2_3                     GNU Project's Bourne Again SHell  
ca_root_nss-3.83               Root certificate bundle from the Mozilla Project
curl-7.85.0                    Command line tool and library for transferring data with URLs
db5-5.3.28_8                   Oracle Berkeley DB, revision 5.3
expat-2.4.9                    XML 1.0 parser written in C
gdbm-1.23                      GNU database manager
gettext-runtime-0.21           GNU gettext runtime libraries and programs
indexinfo-0.3.1                Utility to regenerate the GNU info page index
jansson-2.14                   C library for encoding, decoding, and manipulating JSON data
libargon2-20190702             Memory hard password hashing program and library
libidn2-2.3.3                  Implementation of IDNA2008 internationalized domain names
libnghttp2-1.48.0              HTTP/2.0 C Library
libpsl-0.21.1_4                C library to handle the Public Suffix List
libssh2-1.10.0,3               Library implementing the SSH2 protocol
libunistring-1.0               Unicode string library
libxml2-2.10.2                 XML parser library for GNOME
mod_php74-7.4.32_1             PHP Scripting Language
nano-6.4                       Nano's ANOther editor, an enhanced free Pico clone  
pcre2-10.40                    Perl Compatible Regular Expressions library, version 2
perl5-5.32.1_3                 Practical Extraction and Report Language
php74-7.4.32                   PHP Scripting Language
php74-curl-7.4.32              The curl shared extension for php
php74-mysqli-7.4.32            The mysqli shared extension for php
php74-simplexml-7.4.32         The simplexml shared extension for php
php74-xml-7.4.32               The xml shared extension for php
pkg-1.18.4                     Package manager
readline-8.1.2                 Library for editing command lines as they are typed