Anchor image using Boostrap

The anchor() function takes 3 arguments.
1. URI string
2. Title
3. Options (optional)

The second argument (title) can be a simple text like 'Click here', but it can also be an image or any other html element.

PHP Code:

$image = '<img src="' . base_url('assets/images/example.png') . '" width="30" height="30" alt="" />';
echo anchor('users/login', $image); 


In this example, the result is an image (example.png) that is clickable, like a normal hyperlink. The link points to the login function in the users controller.