PHP Ternary Operator ? :

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$val = 10;
$total = 0;
$total = $val > 9 ? ($val + 10) : 0;

echo $total; // $val equals 20

Here is another example:

   $newValue = $val ?: 9;

In this example $newValue is 10.  Notice when $val is NOT null the $newVal will be the value of $val otherwise it's the value behind ?: which is 9 in this case.