Bug #62059 [NEW]: ArrayObject and isset are not friends.

From: Operating system: Linux 2.6.32-5-amd64 PHP version: Irrelevant Package: SPL related Bug Type: Bug Bug description:ArrayObject and isset are not friends. Description: ------------ The doc state that isset() is not a function, so that it can do weird things like deep inspection, without raising a NOTICE about 'b' being undefined : $a = array(); isset($a['b']['c']); But if $a is an ArrayObject, the deep inspection does not work and a "Undefined index 'b'" NOTICE is triggered. But I found a __isset() in the documentation, (http://www.php.net/manual/en/language.oop5.overloading.php#object.isset) it have a very concise documentation but it seems a sufficient convention to make this work : I think that isset should call __isset() from left to right returning FALSE at the 1st non set member, like this : $a = SomeObject(); isset($a['b']['c']['d']['e']); should call : $a->__isset('b'), that should return FALSE, and stop here, wihout NOTICE. Test script: --------------- echo "isset on array, work without notice\n"; $array = array(); var_dump(isset($array['a']['b'])); echo "isset on arrayobject, should work as ArrayObject implements __isset\n"; $arrayobject = new ArrayObject(); var_dump(isset($arrayobject['a']['b'])); Expected result: ---------------- isset on array, work without notice bool(false) isset on arrayobject, should work as ArrayObject implements __isset bool(false) Actual result: -------------- isset on array, work without notice bool(false) isset on arrayobject, should work as ArrayObject implements __isset PHP Notice: Undefined index: a in test.php on line 10 Notice: Undefined index: a in test.php on line 10 bool(false) -- Edit bug report at https://bugs.php.net/bug.php?id=62059&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=62059&r=trysnapshot54 Try a snapshot (PHP 5.3): https://bugs.php.net/fix.php?id=62059&r=trysnapshot53 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=62059&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=62059&r=fixed Fixed in SVN and need be documented: https://bugs.php.net/fix.php?id=62059&r=needdocs Fixed in release: https://bugs.php.net/fix.php?id=62059&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=62059&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=62059&r=needscript Try newer version: https://bugs.php.net/fix.php?id=62059&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=62059&r=support Expected behavior: https://bugs.php.net/fix.php?id=62059&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=62059&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=62059&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=62059&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=62059&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=62059&r=dst IIS Stability: https://bugs.php.net/fix.php?id=62059&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=62059&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=62059&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=62059&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=62059&r=mysqlcfg