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Asked: 2026-06-07T13:08:24+00:00

Hi I’m new to PHP and I would like some help please. I ‘ve

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Hi I’m new to PHP and I would like some help please.
I ‘ve created a contact form and i would like to add some captcha. I have created some gif images, that have numbers with some noise added on, and named the code_01.gif for no1, code_02.gif for no2 etc etc. I have put some of them on my form, staticly, for display purposes like this: 

<img src="images/code_01.gif" />
<img src="images/code_07.gif" />
<img src="images/code_01.gif" />
<img src="images/code_08.gif" />
<img src="images/code_03.gif" />
<img src="images/code_07.gif" />
<input name="captcha" type="text" id="captcha" />

I would like to add some functionality to display randomly the image codes every time and also check to see if the input matches with the 6 digits that displayed.

Any help would be appreciated.

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1 Answer

  1. Editorial Team

    Simple PHP Captcha

    This is one of the easiest CAPTCHA scripts you will ever use. While it doesn’t obscure the text, it will serve its purpose well for many people who need a low-level CAPTCHA solution. This script requires little-to-no setup. The only dependency is the PHP GD library.

    It can be as simple as this to use, but it is also configurable:

    <?php

session_start();
include("captcha.php");
$_SESSION['captcha'] = captcha();

echo '<img src="' . $_SESSION['captcha']['image_src'] . '" alt="CAPTCHA" />';

?>

    Demo: http://labs.abeautifulsite.net/simple-php-captcha/

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