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
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