Rule is_null¶
Replaces is_null($var) expression with null === $var.
Warning¶
Using this rule is risky¶
Risky when the function is_null is overridden.
Examples¶
Example #1¶
--- Original
+++ New
<?php
-$a = is_null($b);
+$a = null === $b;
Rule sets¶
The rule is part of the following rule sets: