[PHP-BUG] Bug #68110 [NEW]: undefined variable error not being triggered for undefined array index

From:             mathiasgrimm at gmail dot com
Operating system: OSX, Windows, Linux
PHP version:      5.5.17
Package:          PHP Language Specification
Bug Type:         Bug
Bug description:undefined variable error not being triggered for undefined array index

Description:
------------
according to the
manual(http://ie1.php.net/manual/en/language.types.array.php):

Note:
Attempting to access an array key which has not been defined is the same
as accessing any other undefined variable: an E_NOTICE-level error
message will be issued, and the result will be NULL.



Test script:
---------------
        $a ['a'] = null;
        

        $tmp = $a['a']['b']; // nothing
        $tmp = $a['a']['b']['c']; // nothing

// this works (throw an E_NOTICE) fine
$a ['a'] = array();
$tmp = $a['a']['b']; // Undefined index: b
$tmp = $a['a']['b']['c']; // Undefined index: b


Expected result:
----------------
assert(isset($php_errormsg) === true);

Actual result:
--------------
Undefined index: b

-- 
Edit bug report at https://bugs.php.net/bug.php?id=68110&edit=1
-- 
Try a snapshot (PHP 5.4):   https://bugs.php.net/fix.php?id=68110&r=trysnapshot54
Try a snapshot (PHP 5.5):   https://bugs.php.net/fix.php?id=68110&r=trysnapshot55
Try a snapshot (trunk):     https://bugs.php.net/fix.php?id=68110&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=68110&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=68110&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=68110&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=68110&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=68110&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=68110&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=68110&r=notwrong
Not enough info:            https://bugs.php.net/fix.php?id=68110&r=notenoughinfo
Submitted twice:            https://bugs.php.net/fix.php?id=68110&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=68110&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=68110&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=68110&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=68110&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=68110&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=68110&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=68110&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=68110&r=mysqlcfg