SimpleRSSElement.php

<?php
/**
 * @copyright  2020 Podlibre
 * @license    https://www.gnu.org/licenses/agpl-3.0.en.html AGPL3
 * @link       https://castopod.org/
 */

class SimpleRSSElement extends SimpleXMLElement
{
    /**
     * Adds a child with $value inside CDATA
     * @param unknown $name
     * @param unknown $value
     */
    public function addChildWithCDATA($name, $value = null, $namespace = null)
    {
        $new_child = $this->addChild($name, null, $namespace);

        if ($new_child !== null) {
            $node = dom_import_simplexml($new_child);
            $no = $node->ownerDocument;
            $node->appendChild($no->createCDATASection($value));
        }

        return $new_child;
    }
}