@ -53,7 +53,7 @@ function addlinkcategory($type) {
$description = trim($description);
// If title is empty, an error occurs
if (empty($urllink) || $urllink == 'http://') {
if (filter_var($urllink, FILTER_VALIDATE_URL) == false) {
$msgErr = get_lang('GiveURL');
Display::display_error_message(get_lang('GiveURL'));
$ok = false;