edit if(!is_number($_POST['article']) || $_POST['article'] == ''){ error(0); } $ArticleID = $_POST['article']; $NewAlias = $Alias->convert($_POST['alias']); $Dupe = $Alias->to_id($_POST['alias']); if($NewAlias!='' && $NewAlias!='addalias' && !$Dupe){ //Not null, and not dupe $DB->query("INSERT INTO wiki_aliases (Alias, UserID, ArticleID) VALUES ('$NewAlias', '$LoggedUser[ID]', '$ArticleID')"); $Alias->flush(); } else { error('The alias you attempted to add was either null or already in the database.'); } $Cache->delete_value('wiki_article_'.$ArticleID); header('Location: wiki.php?action=article&id='.$ArticleID);