if ((isset($GLOBALS['__XML_CALLBACKS']['functions'][$callback])) && (isset($GLOBALS['__XML_ARGUMENTS'][$callback]))) {
// Run all function callbacks
foreach ($GLOBALS['__XML_CALLBACKS']['functions'][$callback] as $function) {
if ((isset($GLOBALS['__XML_CALLBACKS']['functions'][$callback])) && (isset($GLOBALS['__XML_ARGUMENTS'][$callback]))) {
// Run all function callbacks
foreach ($GLOBALS['__XML_CALLBACKS']['functions'][$callback] as $function) {