- foreach ($tags as $t) {
- foreach ($arr as $i => $x) {
- if (strcmp($x, $t) == 0) {
- unset($arr[$i]);
+ foreach ($tags as $new_tag) {
+ foreach ($old_tags as $index => $old_tag) {
+ if (strcmp($old_tag, $new_tag) == 0) {
+ unset($old_tags[$index]);