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Sep 30
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Click-In that Captcha

Wed, 09/30/2009 - 05:39 — julie

Tired of the old Type-In Captcha? If so, learn how to build a unique type of “click-in” captcha in this tutorial.

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Introduction

This tutorial is inspired by Zac Vineyard’s “Build Your Own Captcha and Contact Form” on Nettuts+, although what we’ll accomplish here is a very unique way of implementing a captcha. One of the advantages of this kind of implementation is that it gets rid of the need to retain several hundreds or even thousands of images in your server.

Objective

In this tutorial, the objective is to make a ‘click-in’ captcha.

We’ll be needing two images:

The captcha image:

(more...)

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