Re: Question About Blocking Email Addresses in Forms
| From: | Richard Lynch | Date: | Fri, 18 Jan 2008 21:00:07 +0000 |
| Subject: | Re: Question About Blocking Email Addresses in Forms | ||
| References: | 1 2 3 4 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-267589@lists.php.net to get a copy of this message | ||
On Fri, January 18, 2008 9:31 am, Richard Heyes wrote:
>> Or even a simple text CAPTCHA "What is 16 divided by 4?".
>
> Careful though, I made a class which converted numbers to text
> (TextualNumbers IIRC) and it got broken.
Almost any CAPTCHA can be broken if somebody wants it badly enough.
Some are easier than others, of course.
But you get rid of a LOT of bottom-feeders with a CAPTCHA.
CAPTCHA has serious usability drawbacks, however.
I would suggest NOT going for something really hard for a human to use
-- I believe that it won't make THAT much difference to the number of
junk eliminated.
--
Some people have a "gift" link here.
Know what I want?
I want you to buy a CD from some indie artist.
http://cdbaby.com/from/lynch
Yeah, I get a buck. So?