note 129710 added to language.operators.comparison

If $a is undefined or unset, (NULL === $a) generates a Warning but it also returns a boolean value of TRUE. (is_null( $a )) behaves exactly the same. ---- Server IP: 45.112.84.4 Probable Submitter: 80.90.5.137 (proxied: 2001:56a:f47b:f500:fd53:59ff:b19f:673e) ---- Manual Page -- https://php.net/manual/en/language.operators.comparison.php Edit -- https://main.php.net/note/edit/129710 Del: integrated -- https://main.php.net/note/delete/129710/integrated Del: useless -- https://main.php.net/note/delete/129710/useless Del: bad code -- https://main.php.net/note/delete/129710/bad+code Del: spam -- https://main.php.net/note/delete/129710/spam Del: non-english -- https://main.php.net/note/delete/129710/non-english Del: in docs -- https://main.php.net/note/delete/129710/in+docs Del: other reasons-- https://main.php.net/note/delete/129710 Reject -- https://main.php.net/note/reject/129710 Search -- https://main.php.net/manage/user-notes.php