note 116824 added to function.property-exists

The function behaves differently depending on whether the property has been present in the class declaration, or has been added dynamically, if the variable has been unset() <?php class TestClass { public $declared = null; } $testObject = new TestClass; var_dump(property_exists("TestClass", "dynamic")); // boolean false, as expected var_dump(property_exists($testObject, "dynamic")); // boolean false, same as above $testObject->dynamic = null; var_dump(property_exists($testObject, "dynamic")); // boolean true unset($testObject->dynamic); var_dump(property_exists($testObject, "dynamic")); // boolean false, again. var_dump(property_exists($testObject, "declared")); // boolean true, as espected unset($testObject->declared); var_dump(property_exists($testObject, "declared")); // boolean true, even if has been unset() ---- Server IP: 72.52.91.14 Probable Submitter: 2.237.0.145 ---- Manual Page -- http://php.net/manual/en/function.property-exists.php Edit -- https://master.php.net/note/edit/116824 Del: integrated -- https://master.php.net/note/delete/116824/integrated Del: useless -- https://master.php.net/note/delete/116824/useless Del: bad code -- https://master.php.net/note/delete/116824/bad+code Del: spam -- https://master.php.net/note/delete/116824/spam Del: non-english -- https://master.php.net/note/delete/116824/non-english Del: in docs -- https://master.php.net/note/delete/116824/in+docs Del: other reasons-- https://master.php.net/note/delete/116824 Reject -- https://master.php.net/note/reject/116824 Search -- https://master.php.net/manage/user-notes.php