private static function _removeDescendant(Html $el, Html $target, $all)
{
foreach ($target->getChildren() as $index => $child) {
if ($child instanceof Html) {
if ($child === $el) {
if ($all) {
unset($target->children[$index]);
$unset = TRUE;
} else {
unset($target[$index]);
return TRUE;
}
} else {
if (self::_removeDescendant($el, $child, $all) && !$all) {
return TRUE;
}
}
}
}
if (isset($unset)) {
$target->children = array_values($target->children);
}
return FALSE;
}