1.2.1095. Short Ternary

Short ternaries are the ternary operator, where the middle operand was left out.

Written that way, the operator checks if the first operand is empty() : in that case, the second operand is used; Otherwise, the first operand is used.

<?php
     // $b is now 2
     $b = $a ?: 2;
     // $c is now 2 also
     $c = $b ?: 4;
?>

See also Ternary Operator.

1.2.1095.1. Specs

Short name	Php/ShortTernary
Rulesets	All, Appinfo, Changed Behavior, One Liners
Exakat since	2.5.2
Severity	Minor
Time To Fix	Quick (30 mins)
Precision	Very high
Features	short-ternary
Available in	Entreprise Edition, Exakat Cloud