A ternary operator is a quick shortcut to bypass the multi-line if-else statement. It is sufficient when simple setting a value of a variable based on a condition.
It looks like this:
$variable == 10 ? $x = true : $x = false;
That is saying “if $variable equals 10 then set $x equal to true, otherwise set $x equal to false”.
In a nutshell, condition? true : false;