function SimpleXMLElement_append($key, $value)
{
// check class
if (get_class($key) == 'SimpleXMLElement' && get_class($value) == 'SimpleXMLElement') {
// check if the value is string value / data
if (trim((string) $value) == '') {
// add element and attributes
$element = $key->addChild($value->getName());
foreach ($value->attributes() as $attKey => $attValue) {
$element->addAttribute($attKey, $attValue);
}
// add children
foreach ($value->children() as $child) {
SimpleXMLElement_append($element, $child);
}
} else {
// set the value of this item
$element = $key->addChild($value->getName(), trim((string) $value));
}
} else {
// throw an error
throw new Exception('Wrong type of input parameters, expected SimpleXMLElement');
}
}
function SimpleXMLElement_append($parent, $child)
{
// get all namespaces for document
$namespaces = $child->getNamespaces(true);
// check if there is a default namespace for the current node
$currentNs = $child->getNamespaces();
$defaultNs = count($currentNs) > 0 ? current($currentNs) : null;
$prefix = count($currentNs) > 0 ? current(array_keys($currentNs)) : '';
$childName = strlen($prefix) > 1 ? $prefix . ':' . $child->getName() : $child->getName();
// check if the value is string value / data
if (trim((string) $child) == '') {
$element = $parent->addChild($childName, null, $defaultNs);
} else {
$element = $parent->addChild($childName, htmlspecialchars((string) $child), $defaultNs);
}
foreach ($child->attributes() as $attKey => $attValue) {
$element->addAttribute($attKey, $attValue);
}
foreach ($namespaces as $nskey => $nsurl) {
foreach ($child->attributes($nsurl) as $attKey => $attValue) {
$element->addAttribute($nskey . ':' . $attKey, $attValue, $nsurl);
}
}
// add children -- try with namespaces first, but default to all children
// if no namespaced children are found.
$children = 0;
foreach ($namespaces as $nskey => $nsurl) {
foreach ($child->children($nsurl) as $currChild) {
SimpleXMLElement_append($element, $currChild);
$children++;
}
}
if ($children == 0) {
foreach ($child->children() as $currChild) {
SimpleXMLElement_append($element, $currChild);
}
}
}
