Enables CDATA tags.

SimpleXMLElement.php

<?php
/**
 *
 *
 * @author Robert Allen <zircote@gmail.com>
 * @package Zircote
 * @subpackage SimpleXMLElement
 *
 *
 */
class Zircote_SimpleXMLElement extends SimpleXMLElement
{
    /**
     * <code>
     * $xml = new Zircote_SimpleXMLElement('<root></root>');
     * $xml->addChild('childElement')
     *     ->addCData(base64_encode(sha1(time())));
     * echo $xml->asXML();
     * <?xml version="1.0"?>
     * <root><childElement><![CDATA[YzhkMjNmNTU3YTgzOTBmN2ExZjI0ZmYxYjU3ODU2MmVjNDU1MjBkNw==]]></childElement></root>
     * </code>
     *
     * @param string $cdata
     * @return Zircote_SimpleXMLElement
     */
    public function addCData ($cdata)
    {
        $node = dom_import_simplexml($this);
        $node->appendChild($node->ownerDocument->createCDATASection($cdata));
        return $this;
    }
}