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php3-list | 199901
Date: 01/23/99
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Hi all,
I have a classic CompSci-problem tonight. I wrote this algorithm
in a class last year (in Scheme), but now I just can't figure it out.
I need a PHP-function that takes an array as input and returns all
possible permutations. I'm writing a searchengine for my personal
webpages and it would be great to be able to show partial matches
instead of just a "perfect 100%" hit.
If the array was [A,B,C] my result should be:
[A,B,C]
[A,B]
[A,C]
[B,C]
[A]
The order of the elements doesn't matter. I have searched
the "usual" PHP-algorithm-archives, but to no avail. Has
someone out there already written this and could show me
how?
Yours Sincerely,
Erik Tjernlund <erik <email protected>>
Royal Institute of Technology
Stockholm, Sweden
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