how to hack this php class for parse ZIP file in random or specific order

Question

My English is poor so I will make it short. Right now, I have imzip.zip which has three txt files:

a.txt
b.txt
c.txt

When I try to load imzip.zip using:
http://pastebin.com/m1d974990
It loads the files alphabetically. In this case:

a.txt 
b.txt 
c.txt

However, I would like to be able to have the class load on different variables such as by size, date or simply random.

The problem is I have no idea how I would go about modifying the class to fit my needs.

I would really appreciate your help! :D

Answer 1

Chacha102, thanks for the improvement.
I feel so stupid.
the php class returns an array ...