Extends SimpleXMLElement to support writing CDATA

SimpleXMLExtended.php

<?php

class SimpleXMLExtended extends SimpleXMLElement
{
    // Inspired by: https://stackoverflow.com/questions/6260224/how-to-write-cdata-using-simplexmlelement/6260295
  
    public function addCDATA($string)
    {
        $node = dom_import_simplexml($this);
        $nodeOwner = $node->ownerDocument;
        $node->appendChild($nodeOwner->createCDATASection($string));
    }

    public function appendChildWithCDATA($key, $value)
    {
        $this->addChild($key);
        $this->{$key}->addCData($value);
    }
}

Clean