I am still getting the Invalid arguement error on this implode: if (isset($_POST['BannerSize'])){$BannerSize = implode(',',$_POST['BannerSize']);} else {$BannerSize = "";} I have moved the ',', from the beginning to the end of the statement and nothing works is there any other way to do this, basically there is a form and the people entering work orders can select different sized banners they need, which goes into the db as text ....so...argh...