array2XML.php

<?php

  /**
   * Converts an structured PHP array to XML.
   *
   * @param Array $data_array
   *   The array data for converting into XML.
   * @param Object $xml_object
   *   The SimpleXMLElement Object
   *
   * @see https://gist.github.com/drupalista-br/9230016
   * 
   */
  function array_to_xml($data_array, &$xml_object) {
    foreach($data_array as $node) {
      $subnode = $xml_object->addChild($node['#xml_tag'], $node['#xml_value']);
  
      if ($node['#tag_attributes']) {
        foreach ($node['#tag_attributes'] as $tag_attributes) {
          $subnode->addAttribute($tag_attributes['name'], $tag_attributes['value']); 
        }
      }
  
      if ($node['#subnode']) {
        array_to_xml($node['#subnode'], $subnode);
      }
    }
  }