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

From: cryptographite at comcast dot net Operating system: FreeBSD PHP version: 5.0.3 PHP Bug Type: Scripting Engine problem Bug description: isset() and empty() return "Trying to get property of non-object" 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 bug report at http://bugs.php.net/?id=31715&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=31715&r=trysnapshot4 Try a CVS snapshot (php5.0): http://bugs.php.net/fix.php?id=31715&r=trysnapshot50 Try a CVS snapshot (php5.1): http://bugs.php.net/fix.php?id=31715&r=trysnapshot51 Fixed in CVS: http://bugs.php.net/fix.php?id=31715&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=31715&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=31715&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=31715&r=needscript Try newer version: http://bugs.php.net/fix.php?id=31715&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=31715&r=support Expected behavior: http://bugs.php.net/fix.php?id=31715&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=31715&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=31715&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=31715&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=31715&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=31715&r=dst IIS Stability: http://bugs.php.net/fix.php?id=31715&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=31715&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=31715&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=31715&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=31715&r=mysqlcfg