I'm not sure why you'd consider reversing the hash.
Having seen people suggest similar things in the past, my assumption is that the reason for this is so that users can log in using only their password. Which is a thoroughly ill-conceived and insecure way of doing things. So, OP, if that was your intention, please don't do that.

In reply to Re^2: Password with hashes by dsheroh
in thread Password with hashes by Velli

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