[DUG] Hash function for string

[John Bird]

I need a function to get a hash value from a string about 100 or so characters long, ideally giving something only 10-20 characters max - either a string or number.

Any recomendations?

Used a simple roll-my own up to now, but it does not work well for more than about 32 characters - well I think it might possibly give duplicates.

John
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