How do you retrieve a hashed password?
A while back I heard that a web designer should never store a plain text password anywhere. I can see how that can be done, but let's say the visitor to your site has forgotten his password. I would imagine that his password is stored in the database in md5 format. How do you retrieve that password in plain text format so that it can be emailed to the person requesting it?
On another note I just noticed that you can now rate up or down comments on php.net!
I get a kick out of little things like that.
EDIT: On a related note there are md5 decryption programs out there. Would double or triple md5 encryption be a good enough deterrent for the average hacker? Either way I imagine just getting the hashed password of any ol' user is difficult enough to get.