Why does this if require a default?

Question

This is the if:

Session::has('tk') ? Session::get('tk') : 1;

I would like to skip the : 1 but then it fails for some reason while tk is allways set in another if?

Answer 1

if you already know that tk has a value, then you don't need to use has() function to check it.

Use just:

Session::get('tk');

Answer 2

In a short if, you need to define both:

<?php
    $var = ($someThing) ? true: false;

If you don't want to do that, take a regular if-statement

<?php
    if ($someThing) {
        $var = true;
    }