public function wpws_meta_box_orderID($post) { global $current_user; $wpws_meta_orderID = get_post_meta($post->ID, 'wpws_meta_orderID', true); $taskA = WPWS_Model::getOrders(); //Get the Order IDs foreach ($taskA as $orderA) { $orderIDA[] = $orderA->orderID; } ?> <select name="wpws_meta_orderID" id="wpws_meta_orderID" size="4" style="height:90px;"> <?php foreach ($orderIDA as $orderID) { ?> <option value="<?php echo $orderID; ?> " <?php selected($wpws_meta_orderID, $orderID); ?> >Order ID: <?php echo $orderID; ?> </option> <?php } ?> </select> <p id="orderInfo"></p> <?php }