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Posted by zach on 04/30/07 22:57
I'm new to learning PHP so maybe there is a reason why Captcha's always
contain letters? I can't remember where I saw it...but I remember using
a website that only used numbers for the Captcha and it was so nice
because I just used one hand and quickly typed the numbers in and it
isn't nearly as easy to get confused one what character they want you to
type. At least for me this seemed faster and easier. I get confused with
some captcha's because I can't tell if a letter is an l or i or o and 0.
Just a thought on speed and usability. Is there a security reason why
using only numbers shouldn't be used?
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