Codeigniter Helpers are a collection of functions in a particular category which full fills the requirement for particular tasks.
Example : url helper which provides functions related to creating links .
How to load Codeigniter helpers :
$this->load->helper('name');
for loading url helper :
$this->load->helper('url');
Loading multiple helpers :
$this->load->helper( array('helper1', 'helper2', 'helper3') );
You can also autoload helpers :
to autoload helpers go to autoload.php
add the helper in autoload you want to auto load.