From: usmanghanee at gmail dot com
Operating system: Windows XP (Service Pack 2)
PHP version: 5.3.0alpha3
PHP Bug Type: Unknown/Other Function
Bug description: Array handling problem
Description:
------------
I don't know exactly how to explain it. Forgive me if I use wrong English.
I'll try to be as short as possible.
I tried to use two dimensional array and faced a strange problem.
Problem Brief:
First I defined two dimensional array.
Then, I tried to access a third dimension of such array which was not
actually defined at all. The result should have been a warning saying
something like "Undefined index" but it printed out some value. The value
printed was the first letter of the value at 2nd dimension based offset.
Initially, I tried different(variety of) alphabetic and alphanumeric values
at third level dimension. It kept on printing the first letter of the value
as mentioned above. Then, I tried purely numeric values like '0', '1', '2'
and so on. This time it behaved differently. It printed out the letter at
offset number, provided as third dimension, from the value at 2nd
dimension.
I tested it with 5.2.8 and 5.3.0Alpha both. The problem also exists in
version 5.3.0Alpha. I also tried the command line methods for both versions
which resulted out in the same way.
Reproduce code:
---------------
$arr = array("sub1" =>
array("sub2" => "SomeString"));
/*
// I also tried it as the code given in these comments.
// It gave the same output.
$arr["sub1"] = array();
$arr["sub1"]["sub2"] = "SomeString";
*/
echo $arr["sub1"]["sub2"]["sub3"];
Expected result:
----------------
There should have been some warning saying "Undefined index - sub3".
Actual result:
--------------
The actual result was an "S" printed on the screen, the first letter of
the value "SomeString".
/*
Please Note:
------------
1) When I provided '0' instead of "sub3" as the third dimension for
echo purpose, it printed out "S" which is the letter at offset '0' of the
value "SomeString".
2) When I provided '1' instead of "sub3" as the third dimension for
echo purpose, it printed out "o" which is the letter at offset '1' of the
value "SomeString".
3) When I provided '2' instead of "sub3" as the third dimension for
echo purpose, it printed out "m" which is the letter at offset '2' of the
value "SomeString".
4) So on.
*/
--
Edit bug report at http://bugs.php.net/?id=47211&edit=1
--
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=47211&r=trysnapshot52
Try a CVS snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=47211&r=trysnapshot53
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=47211&r=trysnapshot60
Fixed in CVS:
http://bugs.php.net/fix.php?id=47211&r=fixedcvs
Fixed in CVS and need be documented:
http://bugs.php.net/fix.php?id=47211&r=needdocs
Fixed in release:
http://bugs.php.net/fix.php?id=47211&r=alreadyfixed
Need backtrace:
http://bugs.php.net/fix.php?id=47211&r=needtrace
Need Reproduce Script:
http://bugs.php.net/fix.php?id=47211&r=needscript
Try newer version:
http://bugs.php.net/fix.php?id=47211&r=oldversion
Not developer issue:
http://bugs.php.net/fix.php?id=47211&r=support
Expected behavior:
http://bugs.php.net/fix.php?id=47211&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=47211&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=47211&r=submittedtwice
register_globals:
http://bugs.php.net/fix.php?id=47211&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=47211&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=47211&r=dst
IIS Stability:
http://bugs.php.net/fix.php?id=47211&r=isapi
Install GNU Sed:
http://bugs.php.net/fix.php?id=47211&r=gnused
Floating point limitations:
http://bugs.php.net/fix.php?id=47211&r=float
No Zend Extensions:
http://bugs.php.net/fix.php?id=47211&r=nozend
MySQL Configuration Error:
http://bugs.php.net/fix.php?id=47211&r=mysqlcfg
