Returning the ID's of deleted rows?

[Velocd]

I have a query that looks exactly like this:

PHP Code:

$DB_site->query("DELETE FROM categories WHERE FIND_IN_SET('$catid',parentlist)>0"); 


I need to somehow return the ID's of the rows deleted from this query. Those ID's being the values of the first column auto_increment 'categoryid' of the table categories.

I need this for a later query that looks like this:

PHP Code:

$DB_site->query("DELETE FROM images WHERE categoryid IN ($deletelist)"); 


$deletelist being the rows deleted in the first query, arranged in a comma seperated list using implode().

I would be very thankful if you could help.