Bug #53277 [NEW]: Setting previously undefined property on an ArrayObject triggers weird error

From: Operating system: Linux PHP version: 5.2.14 Package: *Programming Data Structures Bug Type: Bug Bug description:Setting previously undefined property on an ArrayObject triggers weird error Description: ------------ When assigning a reference to a previously undefined property of an ArrayObject, E_NOTICE is thrown on the assignment itself, and every time that property is accessed after that. Despite the "undefined index" complaints, the code works as expected — $b->test[] = "foo" successfully assigns "foo" to $a[0]. This issue does not occur with assignment by value — no notices are displayed (though the code no longer works as intended, as $a[0] remains undefined). It also does not occur if $b->test is initialized prior to the assignment by reference (e.g. adding a "$b->test = true" row before the assignment) — in this case the assignment by reference also works as intended, and does not emit E_NOTICE. Test script: --------------- error_reporting(E_ALL & E_STRICT); ini_set('display_errors', 1); $a = array(); $b = new ArrayObject(array(), ArrayObject::ARRAY_AS_PROPS); $b->test = &$a; $b->test[] = "foo"; print($a[0]); Expected result: ---------------- Script should run without notices. Actual result: -------------- Script throws "Undefined index: test" notices every time $b->test is referenced, even though everything works correctly otherwise. -- Edit bug report at http://bugs.php.net/bug.php?id=53277&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=53277&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=53277&r=trysnapshot53 Try a snapshot (trunk): http://bugs.php.net/fix.php?id=53277&r=trysnapshottrunk Fixed in SVN: http://bugs.php.net/fix.php?id=53277&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=53277&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=53277&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=53277&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=53277&r=needscript Try newer version: http://bugs.php.net/fix.php?id=53277&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=53277&r=support Expected behavior: http://bugs.php.net/fix.php?id=53277&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=53277&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=53277&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=53277&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=53277&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=53277&r=dst IIS Stability: http://bugs.php.net/fix.php?id=53277&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=53277&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=53277&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=53277&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=53277&r=mysqlcfg