forms - CodeIgniter POST/GET default value

Question

Can I set default value for POST/GET data if it's empty/false, something like

$this->input->post("varname", "value-if-falsy")

?

So I don't have to code like

$a = $this->input->post("varname") ? 
     $this->input->post("varname") :
     "value-if-falsy"

Answer 1

Just found out not very long ago that I can also use ?:, eg.

$name = $this->input->post('name') ?: 'defaultvalue';