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A
Anonymous
February 25, 2007
Answered

Captcha

  • February 25, 2007
  • 10 replies
  • 969 views
How to create a captcha, have tried lines of captcha code but images are always blank.
So how do I do this?
This topic is closed to new replies. Start a new post to keep the conversation going.
Correct answer
If you must know it's a GD problem and downloaded 2 versions of PHP and tried all the things needed to get this GD going.

I managed to find just one file to fix it all:

http://www.nabble.com/file/4867/php_gd2.dll

Thanks All for your help.
Sorry forgot to mention you need to have a .png file as well, called captcha.png for this to work.
Cheers

10 replies

A
Anonymous
February 27, 2007
Hi all

I got it to work but would like to know how to refresh just the image on the page and not the whole page.
Any ideas or ways to do this?
Cheers
N
Newsgroup_User
Inspiring
February 26, 2007
> There is a catch about using Captcha -- it can be a real problem for
> visually
> impaired Internet user who can't see the security code.

It can be a real problem for pretty much anyone. They are annoying. ;o)

In the end, distorted cryptic-text image captchas should always be a last
resort.

-Darrel


A
Anonymous
Correct answer
February 27, 2007
If you must know it's a GD problem and downloaded 2 versions of PHP and tried all the things needed to get this GD going.

I managed to find just one file to fix it all:

http://www.nabble.com/file/4867/php_gd2.dll

Thanks All for your help.
Sorry forgot to mention you need to have a .png file as well, called captcha.png for this to work.
Cheers
Deaf_Web_Designer
Deaf_Web_Designer
Inspiring
February 26, 2007
Westmartix99,

There is a catch about using Captcha -- it can be a real problem for visually impaired Internet user who can't see the security code. However I have seen a workaround solution to that, including an audio file to convey the message.

Just thought that you need to be aware of this on both sides -- as in positive and negative side of Captcha implemention.

quote:
Originally posted by: Westmatrix99
How to create a captcha, have tried lines of captcha code but images are always blank.
So how do I do this?


A
Anonymous
February 25, 2007
Not so good will have to search for answers on google.

Thanks
C
Creativ_Technologies
Inspiring
February 25, 2007
Keep in mind this is a very simple captcha, and if know your javascript make all the changes you want. But you can't change any backgrounds.
A
Anonymous
February 25, 2007
Yes got it and it's cool but would like to make changes to it.
C
Creativ_Technologies
Inspiring
February 25, 2007
Have you download the captcha and tried it yet?
C
Creativ_Technologies
Inspiring
February 25, 2007
This captcha is easily implemented:

http://www.archreality.com/jcap/
A
Anonymous
February 25, 2007
How to refresh the image only?
How to select just one type of background?
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