In our last session, we finished writing the PHP class file that would control all the ad banner functions. This week, we look at the presentation layer for the administration of these functions. The ads_list.php page lists the current banner ads. First, we must include the class file so that the page can instantiate the class call the functions: <?php require_once("class.ads.php"); // instantiate ads class $oAds = new ads; Next, we fill the $aAds array with the data from the ads table and get...