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Oct 8th, 2008

Validating an Image of Characters (COPA)

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Hi guys

You know when you enter a registration page with a textbox saying enter the characters that corespond to the image. I heard its called COPA or something.

Anyone has any tutorials on how to make a page like this?

Thankyou, Regards X

OmniX

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Oct 8th, 2008

Re: Validating an Image of Characters (COPA)

hello..
that is CAPTCHA ..means creating dynamic number on an image...
It is used to prevent spam abuse on the websites
For more information:
http://www.webcheatsheet.com/PHP/cre...protection.php

Shanti C

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Oct 9th, 2008

Re: Validating an Image of Characters (COPA)

Shanti you might be able to help me or if anyone else can.

I did the below tutorial (which was very helpful btw) but I was unable to produce the CAPTCHA within an html page it becomes as JARGAN instead of an IMAGE (I can get an image).

It may also help to mention I have the php and html all in the same page.

Last edited by OmniX; Oct 9th, 2008 at 12:27 pm.

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Oct 9th, 2008

Re: Validating an Image of Characters (COPA)

What is a JARGAN?

In order for CAPTCHA to work, you need to have GD support in PHP enabled on your server. It has been included with PHP since version 4.3, but it might not be enabled.

You might not have that with free hosting services. If you are not seeing CAPTCHA characters, then check with your hosting company about GD support.

TopDogger

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Oct 9th, 2008

Re: Validating an Image of Characters (COPA)

Try http://recaptcha.net for a free captcha library. Using this library aides in the digitizing of books. Also, the image generation is handled by their servers, not yours.

Last edited by scru; Oct 9th, 2008 at 1:38 pm.

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Oct 9th, 2008

Re: Validating an Image of Characters (COPA)

Make sure you have the GD library installed/configured on your server to use the first example.

Last edited by Will Gresham; Oct 9th, 2008 at 1:37 pm.

Will Gresham

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Oct 10th, 2008

Re: Validating an Image of Characters (COPA)

Thanks guys for the information.
But I found the solution in another tutorial.

I didnt realize you cannot mix the php code to generate an image and the html code.

It has to be imported using an img tag.

Anyways problem solved and I just gota try getting it working now.

Thanks, Regards X

OmniX

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