}
}
// Remove links to categories if required.
if (!$linkcategories) {
foreach ($branch->find_all_of_type(navigation_node::TYPE_CATEGORY) as $category) {
$category->action = null;
}
foreach ($branch->find_all_of_type(navigation_node::TYPE_MY_CATEGORY) as $category) {
$category->action = null;
}
}
// Stop buffering errors at this point
$html = ob_get_contents();
ob_end_clean();
} catch (Exception $e) {
throw new coding_exception('Error: ' . $e->getMessage());
}
// Check if the buffer contianed anything if it did ERROR!
if (trim($html) !== '') {
throw new coding_exception('Errors were encountered while producing the navigation branch' . "\n\n\n" . $html);
}
// Check that branch isn't empty... if it is ERROR!
if (empty($branch) || $branch->nodetype !== navigation_node::NODETYPE_BRANCH && !$branch->isexpandable) {
throw new coding_exception('No further information available for this branch');
}
// Prepare an XML converter for the branch
$converter->set_expandable($navigation->get_expandable());
// Set XML headers
header('Content-type: text/plain; charset=utf-8');
// Convert and output the branch as XML
echo $converter->convert($branch);
