#31715 [NoF->Fbk]: isset() and empty() return "Trying to get property of non-object"

ID: 31715 Updated by: aharvey@php.net Reported By: cryptographite at comcast dot net -Status: No Feedback +Status: Feedback Bug Type: Scripting Engine problem Operating System: FreeBSD PHP Version: 5.0.3 New Comment: Please try using this snapshot: http://snaps.php.net/php5.3-latest.tar.gz For Windows: http://windows.php.net/snapshots/ 5.1.2 is an extremely old version of PHP. Please try again with a current version. FWIW, I can't reproduce this with 5.2.10-whatever-Ubuntu-ship or 5.3.1 -- the only notices are to do with the use of the undefined $key variable as an array index, which are valid. The expected output is: $not->set->variable isset false empty true ------------------ $not->set[$key] Notice: Undefined variable: key in /tmp/test.php on line 11 isset false Notice: Undefined variable: key in /tmp/test.php on line 13 empty true Previous Comments: ------------------------------------------------------------------------ [2010-01-08 10:12:43] ninuhadida at gmail dot com I am experiencing the same problem with PHP 5.1.2 on SUSE Linux ------------------------------------------------------------------------ [2005-02-04 01:00:06] php-bugs at lists dot php dot net No feedback was provided for this bug for over a week, so it is being suspended automatically. If you are able to provide the information that was originally requested, please do so and change the status of the bug back to "Open". ------------------------------------------------------------------------ [2005-01-27 08:12:45] derick@php.net Please try using this CVS snapshot: http://snaps.php.net/php5-STABLE-latest.tar.gz For Windows: http://snaps.php.net/win32/php5.0-win32-latest.zip ------------------------------------------------------------------------ [2005-01-27 05:38:02] cryptographite at comcast dot net Description: ------------ Using isset() or empty() on an unset child/parent object throws "Trying to get property of non-object" errors. This is contrary to the behavior of PHP 4 and makes no sense given the purpose of the functions and their descriptions. isset() and empty() should properly handle querying unset objects for children without returning errors. Reproduce code: --------------- <?php echo '$not->set->variable' . "\n"; echo isset($not->set->variable) ? 'isset true' : 'isset false'; echo "\n"; echo empty($not->set->variable) ? 'empty true' : 'isset false'; echo "\n------------------\n"; echo '$not->set[$key]' . "\n"; echo isset($not->set[$key]) ? 'isset true' : 'isset false'; echo "\n"; echo empty($not->set[$key]) ? 'empty true' : 'empty false'; echo "\n"; ?> Expected result: ---------------- Expected output: (No error messages) $not->set->variable isset false empty true ------------------ $not->set[$key] isset false empty true Actual result: -------------- $not->set->variable PHP Notice: Trying to get property of non-object in - on line 3 Notice: Trying to get property of non-object in - on line 3 isset false PHP Notice: Trying to get property of non-object in - on line 5 Notice: Trying to get property of non-object in - on line 5 empty true ------------------ $not->set[$key] PHP Notice: Undefined variable: key in - on line 9 Notice: Undefined variable: key in - on line 9 PHP Notice: Trying to get property of non-object in - on line 9 Notice: Trying to get property of non-object in - on line 9 isset false PHP Notice: Undefined variable: key in - on line 11 Notice: Undefined variable: key in - on line 11 PHP Notice: Trying to get property of non-object in - on line 11 Notice: Trying to get property of non-object in - on line 11 empty true ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=31715&edit=1