note 124996 added to function.property-exists

For class constants, use defined() to check for their existence since property_exists() cannot be used. <?php class A{ private static $c = 'C'; const B = 'B'; } if(property_exists('A','c')===true){ echo 'y'; }else{ echo 'n'; } //output: y if(property_exists('A','B')===true){ echo 'y'; }else{ echo 'n'; } //output: n if(defined('A::B')===true){ echo 'y'; }else{ echo 'n'; } //output: y ?> ---- Server IP: 45.112.84.4 Probable Submitter: 38.142.137.34 (proxied: 96.61.135.240) ---- Manual Page -- http://php.net/manual/en/function.property-exists.php Edit -- https://master.php.net/note/edit/124996 Del: integrated -- https://master.php.net/note/delete/124996/integrated Del: useless -- https://master.php.net/note/delete/124996/useless Del: bad code -- https://master.php.net/note/delete/124996/bad+code Del: spam -- https://master.php.net/note/delete/124996/spam Del: non-english -- https://master.php.net/note/delete/124996/non-english Del: in docs -- https://master.php.net/note/delete/124996/in+docs Del: other reasons-- https://master.php.net/note/delete/124996 Reject -- https://master.php.net/note/reject/124996 Search -- https://master.php.net/manage/user-notes.php