Creating a small encrypted string in PHP

Posted by JustJon on Stack Overflow See other posts from Stack Overflow or by JustJon
Published on 2010-06-02T02:53:00Z Indexed on 2010/06/02 2:53 UTC
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encryption

I am looking to create a small encrypted string, like the referral strings used by Twitpic or bit.ly, for a website I am working on for referral purposes. Any of the built-in functions like MD5 and mcrypt each make strings that are too long for my purposes.

Is there an easy way to create a string like this? Thanks.

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