The traditional way to do this task is to shuffle the array and then just select sequential values from it. See How do I shuffle an array?

If you need to preserve the order then you just shuffle a temporary array (that initially held sequential index values) and select sequential values from that to get random index values to your original array.

In reply to Re: Select value from array w/o replacement (or destroying the array) by tachyon-II
in thread Select value from array w/o replacement (or destroying the array) by BioNrd

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