I have a line of code that looks like:
$var = isset($var) ? $var : 4;
basically I am trying to check if a variable is set (even if its set to empty) and if it isn't , set it to 4
Someone mentioned that I should do it this way:
$var = $var ?? 4;
What I am not sure of (and I am having a hard time search for) is to understand what that is actually doing?
Is the ?? short for asset? is that differentiating between a variable that is set and a variable that is empty?
