This article should include another common integer value for constants: -1.
Setting EMPTY_TRASH_DAYS to 0 may disable the Trash functionality, but what does -1 do? Does it make items that have been trashed remain in the database without ever being permanently deleted?
(0 probably should be the "unlimited" option and -1 or false be "disable trash", but that sort of talk doesn't belong here. ;-)
Voyagerfan5761[Talk/en.wp] 20:16, 9 November 2010 (UTC)