session value and pass argument to controller method

[quote pid='327099' dateline='1451464608']
method2 in controller that passed a parameter to it 

How you passed and what parameter you passed ??

[/quote]

In Main controller, there is an index method, that load a view file. In this view, I call Main controller method2 with parameter.

<a href="<?php echo base_url(); ?>main/method2/some_numeric_var">something</a>