1.2.1341. Use NullSafe Operator¶

The nullsafe operator ?-> is an alternative to the object operator ->. It silently fails the whole expression if a null is used for object.

<?php

$o = null;

// PHP 8.0 Failsafe : $r = null;
$r = $o->method();

// PHP 7.4- : Call to a member function method() on null
$r = $o->method();

?>

See also PHP RFC: Nullsafe operator.

1.2.1341.2. Connex PHP features¶

object-operator

1.2.1341.2.1. Specs¶

Short name	Php/UseNullSafeOperator
Rulesets	All, Appinfo, CE, Changed Behavior, One Liners
Exakat since	2.1.6
PHP Version	With PHP 8.0 and more recent
Severity	Minor
Time To Fix	Quick (30 mins)
Precision	Very high
Available in	Entreprise Edition, Community Edition, Exakat Cloud