Implement CAPTCHA In CodeIgniter

Implement CAPTCHA In CodeIgniter

CAPTCHA is a randomly generated string (or a set of images) that appears when verification is required. It is an essential requirement for cutting down the spam at a website. In many cases, it is the only line of defense a website has against bots that spam websites.
CAPTCHA in CodeIgniter
In this tutorial, I will demonstrate how you can easily implement CAPTCHA in your CodeIgniter projects.

Create Controller

The process starts with the creation of the Controller.
Create a file named captcha.php in the Controller folder. Open the file in your code editor and add the following code to it:
Code Explanation
Here is a brief explanation of the various components of the Controller code:
Load CAPTCHA Helper  
Form Submission
CAPTCHA Configuration

Create the View

The next step is the creation of the View. for this, create a folder in the View folder. Go into the folder and create another folder with the name captcha. inside this folder, create a file named index.php. Add the following code to the file:
Another Method of Calling CAPTCHA with Validation
Here is another method that is used to call in CAPTCHA through CodeIgniter helper and then validate it.


In this tutorial, I discussed how you could easily integrate CAPTCHA into your CodeIgniter projects. If you need help. just drop a comment and I will get back to you.