#49889 [NEW]: offsetExists wrong result

From: carmen at helderhosting dot nl Operating system: unix PHP version: 5.3.0 PHP Bug Type: SPL related Bug description: offsetExists wrong result Description: ------------ If $o = new ArrayObject(); $o['x'] = null; the result for isset($o['x']) it should be false, instead true is given Reproduce code: --------------- <?php $a = array(); $a['x'] = null; var_dump(isset($a['x'])); var_dump(empty($a['x'])); var_dump(array_key_exists('x', $a)); $o = new ArrayObject(); $o['x'] = null; var_dump($o->offsetExists('x')); var_dump(isset($o['x'])); var_dump(empty($o['x'])); var_dump(array_key_exists('x', $o)); ?> Expected result: ---------------- bool(false) bool(true) bool(true) bool(true) bool(false) bool(true) bool(true) Actual result: -------------- bool(false) bool(true) bool(true) bool(true) bool(true) bool(true) bool(true) -- Edit bug report at http://bugs.php.net/?id=49889&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=49889&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=49889&r=trysnapshot53 Try a snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=49889&r=trysnapshot60 Fixed in SVN: http://bugs.php.net/fix.php?id=49889&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=49889&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=49889&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=49889&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=49889&r=needscript Try newer version: http://bugs.php.net/fix.php?id=49889&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=49889&r=support Expected behavior: http://bugs.php.net/fix.php?id=49889&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=49889&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=49889&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=49889&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=49889&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=49889&r=dst IIS Stability: http://bugs.php.net/fix.php?id=49889&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=49889&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=49889&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=49889&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=49889&r=mysqlcfg