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A function for sorting out attachments and putting unapproved attachments before approved ones in an array.

int approved_attach_sort (array $$a, array $$b)

Expected type: Array
Description: An array in the $attachmentData array

Expected type: Array
Description: Another item in the $attachmentData array

Expected type: Enumerated Integer
Description: See http://www.php.net/usort for more info

Possible integer values
Allowed values	Description
-1	$a is approved but $b isn't
0	Both are either approved or unapproved
1	$b is approved but $a isn't