Re: Re: Bug #14063: unset($array[]) causes apache 1.3.20

Yasuo Ohgaki wrote:

Derick Rethans wrote:

On Thu, 15 Nov 2001, Yasuo Ohgaki wrote:

Hi Derick, May I ask question? I've spent a little more time on this. (When I submit the patch, I spent less than 10 minutes :) When unset($arr[]) is called, get_zval_ptr() returns NULL since znode has IS_UNUSED type.

unset is supposed to work on a variabele. $arr[] is not a variable, so the parser should give a parsing error IMO.

Nice catch. I didn't think about that. $something != valid var :(

I'm glad Zeev has fixed this in parser level. I was assuming PHP/Zend is tolerant for these errors. Look like some more work is needed on this. Try this script. <?php function foo() { echo "foo()"; } $name = "foo"; unset($$name); $bar = 'AAA; $name = "bar"; unset($$name); ?> I think this is critical bug. There are might other faults that is similar to this problem in parser. -- Yasuo Ohgaki