How to post XML using CURL?

There are several ways to Send XML requests via HTTP POST.

This is the very simple way to send the xml request via HTTP POST 

<?php 
$xml_data ='<AATAvailReq1>'.
    '<Agency>'.
        '<Iata>1234567890</Iata>'.
        '<Agent>lgsoftwares</Agent>'.
        '<Password>mypassword</Password>'.
        '<Brand>phpmind.com</Brand>'.
    '</Agency>'.
    '<Passengers>'.
        '<Adult AGE="" ID="1"></Adult>'.
        '<Adult AGE="" ID="2"></Adult>'.
    '</Passengers>'.
'<HotelAvailReq1>'.
'<DestCode>JHM</DestCode>'.
        '<HotelCode>OGGSHE</HotelCode>'.
        '<CheckInDate>101009</CheckInDate>'.
        '<CheckOutDate>101509</CheckOutDate>'.
        '<UseField>1</UseField>'.
  '</HotelAvailReq1>'.  
  '</AATAvailReq1>';
 
 
$URL = "https://www.yourwebserver.com/path/";
 
   $ch = curl_init($URL);
   curl_setopt($ch, CURLOPT_MUTE, 1);
   curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
   curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
   curl_setopt($ch, CURLOPT_POST, 1);
   curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: text/xml'));
   curl_setopt($ch, CURLOPT_POSTFIELDS, "$xml_data");
   curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
   $output = curl_exec($ch);
   curl_close($ch);
 
?>