PHP WDDX: Understanding Data Elements

Web Distributed Data Exchange Step By Step tutorial - Part 3: After know packet in WDDX, next question how do we store data into document to send to another system? We will begin with simple variable at php, then look how do we write at WDDX. Let's do it.

At PHP, we write such as:

$varInteger = 1;

At WDDX, we write:

<wddxPacket version='1.0'>
  <header />
  <data>
    <number>1</number>
  </data>
</wddxPacket>

When we want to write:

$studentNumber = 1;
$studentName = "Wiwit Siswoutomo";

We will write:

<wddxPacket version='1.0'>
  <header />
  <data>
    <struct>
	  <var name="studentNumber">
	    <number>1</number>
	  </var>
	  <var name="studentName">
	    <string>Wiwit Siswoutomo</string>
	  </var>
	</struct>
    <number>1</number>
  </data>
</wddxPacket>