How to extend a helper in CodeIgniter?

Question

I want to add some new functions to the core string helper which is found in system/helpers folder. I think there was a 'right' way to do this using MY_String_helper or something of that sort but I can't remember exactly how it was done. Any thoughts?

Answer 1

I found it. Make a file with a name such as this, in the application/helpers directory:

MY_xx_helper.php

E.g:

MY_string_helper.php

Then you can call

$this->load->helper('string');

And it should load all the existing helper functions as well as the new ones you add.

Answer 2

Doing that you can not only add new functions but replace exising helper functions.