function xml_adopt($root, $new)
{
$node = $root->addChild($new->getName(), (string) $new);
foreach ($new->attributes() as $attr => $value) {
$node->addAttribute($attr, $value);
}
foreach ($new->children() as $ch) {
xml_adopt($node, $ch);
}
}
function xml_adopt($root, $new, $namespace = null)
{
// first add the new node
$node = $root->addChild($new->getName(), (string) $new, $namespace);
// add any attributes for the new node
foreach ($new->attributes() as $attr => $value) {
$node->addAttribute($attr, $value);
}
// get all namespaces, include a blank one
$namespaces = array_merge(array(null), $new->getNameSpaces(true));
// add any child nodes, including optional namespace
foreach ($namespaces as $space) {
foreach ($new->children($space) as $child) {
xml_adopt($node, $child, $space);
}
}
}
function add_map($student_id, $json_string)
{
$json_arr = json_decode($json_string, true);
$xml_object = json_arr_to_xml($json_arr);
$student_record = get_user_maps($student_id);
if (empty($student_record)) {
$xml_of_maps = simplexml_load_string("<maps></maps>");
xml_adopt($xml_of_maps, $xml_object);
$map_as_string = xml_to_string($xml_of_maps);
} else {
$maps = get_user_maps($student_id);
xml_adopt($maps, $xml_object);
$map_as_string = xml_to_string($maps);
}
$query = "UPDATE Students SET MAPS='{$map_as_string}' WHERE STUDENT_ID={$student_id}";
exec_query($query);
}
