|
|
Posted by Barry Morris on 11/03/06 16:49
Hello
One web site I have written has a 'register your interest' form which simply
e-mails the data, this is working fine except some people seem to get off on
repeatedly using the form to send phoney data. I guess this is from some
kind of web-bot so I would like to attempt to program around this problem.
One solution is using a distorted image of some letters (CAPTCHA?), however
I was wondering if anybody has chosen a simpler method, and whether my
simple method would be impervious to web-bots?
1/ Generate a random string of letters
2/ Ask the user to select from 3 combo boxes 3 random positions, e.g. select
letters 2, 6 and 7 from LKJIUVBJH.
TIA
Barry Morris
Navigation:
[Reply to this message]
|