note 72807 added to function.constant

@XC: That isn't necessary. If a constant is undefined, constant() returns NULL; simply suppressing the warning should be enough: <?php if(defined('FOO') && constant('FOO') === 'bar'){ // ... } ?> becomes <?php if(@constant('FOO') === 'bar') { // ... } ?> Note that in the first snippet, the call to constant isn't unnecessary as well, and adds a bit of overhead. If you're set on using the first notation, the following is better: <?php if(defined('FOO') && FOO === 'bar') { // ... } ?> ---- Server IP: 64.71.164.2 Probable Submitter: 12.210.207.241 ---- Manual Page -- http://www.php.net/manual/en/function.constant.php Edit -- https://master.php.net/note/edit/72807 Del: integrated -- https://master.php.net/note/delete/72807/integrated Del: useless -- https://master.php.net/note/delete/72807/useless Del: bad code -- https://master.php.net/note/delete/72807/bad+code Del: spam -- https://master.php.net/note/delete/72807/spam Del: non-english -- https://master.php.net/note/delete/72807/non-english Del: in docs -- https://master.php.net/note/delete/72807/in+docs Del: other reasons-- https://master.php.net/note/delete/72807 Reject -- https://master.php.net/note/reject/72807 Search -- https://master.php.net/manage/user-notes.php