Captcha using Codeigniter

Introduction This tutorial will show you how to generate captcha image using Codeigniter Captcha Helper. We will also see how to use captcha using CodeIgniter framework. Captcha helps to prevent automatic submission of forms on the web pages. Captcha would not have been there then some users would have filled your site with spams. Here we will build a simple registration page with captcha. You have to fill all fields on the registration form and finally captcha. The text you see on the captcha is case sensitive. If you need…

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