Need help explaining how to us php to send and receive xml?: xml send, xml receive, xml, php

Need help explaining how to us php to send and receive xml?

I need a good deal of help understanding the send and receive process with xml using php. I have asked for help and have gotten good results but I don't understand what is going on making it hard to adapt any solution to my needs. Can someone explain each part of the process for sending and receiving xml data using php? how the system knows when to send the data and how it knows it is receiving the data back? The example data is that I will send to this company's website an item number, description, price, and quantity. They will send back a confirmation, customer number, and comments. I do have a document that explains how they want things formatted but for this example I was hoping just for someone to create an example markup.

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It depends on what kind of method you want to "send" the xml data with.
For one of my payment gateway implementations I had to send the xml file which they will then in return spit back the results (for example of whether the payment was successful or not).
The "sending" was done via a function which I defined as called httpspost().

The function uses CURL to post data to the relevant URL which the payment gateway supplied. I suppose this is what you are looking for?

Below is the example function, note you have to fill in bits and pieces to customize to suit your own needs...

I suspect you can try to comment out the lines with the SSL parameters, as this was for a payment gateway so required the security.

Goodluck!

function httpsPost($strRequest)
{
   // Initialisation
   $ch=curl_init();
   // Set parameters
   curl_setopt($ch, CURLOPT_HTTPHEADER, Array("Content-Type: application/x-www-form-urlencoded")); 
   curl_setopt($ch, CURLOPT_URL, 'YOUR_DESTINATION_URL_HERE!!');
   // Return a variable instead of posting it directly
   curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
   // Active the POST method
   curl_setopt($ch, CURLOPT_POST, 1) ;
   // Request
   curl_setopt($ch, CURLOPT_POSTFIELDS, $strRequest);
   curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
   curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
   // execute the connexion
   $result = curl_exec($ch);
   // Close it
   curl_close($ch);
   return $result;
}

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xml send

xml receive

xml

php

PHP Scripting Language

Extensible Markup Language (XML)

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