When I program a theme, I put WP-DEBUG on. Which ensure a proper PHP code.
Sadly most Plugin developers keep using non existing vars :
echo $args['title']; Notice: Undefined index: title in /wp-content/plugins/easy-fancybox/easy-fancybox.php on line 301
echo ( isset($args['title']) ? $args['title'] : '' );
So I permanently get tens of Notice errors with some plugins (even MU gets one !)
Thanks to a Debugbar I don't see them on my websites, not in the middle, they are all deported to the bottom.
But how could I hide them in the Dashboard the same way? I would like to push them to the bottom of the page.
UPDATE: Actually, Debugbar hides them in Admin and Website the same way, I just didn't notice that it didn't work for this particular plugin for once. Notices errors were between