The serialize method takes an array and creates an XML string of the data. This is commonly used for serializing model data.

<?php
echo $xml->serialize($data); 
// format will be similar to:
// <model_name id="1" field_name="content" />
?>

1. <?php
2. echo $xml->serialize($data);
3. // format will be similar to:
4. // <model_name id="1" field_name="content" />
5. ?>

The serialize method acts as a shortcut to instantiating the XML built-in class and using the toString method of that. If you need more control over serialization, you may wish to invoke the XML class directly.