Arrays being generated with length and no content on master

Hey：

I was testing CakePHP framework with PHP 7 and some tests were failing.
Digging into the issue I found that using compact in a certain way can
cause PHP to create an array with length but no content inside.

I reported and added some examples on how to reproduce on
https://bugs.php.net/bug.php?id=69198

I'm sending this email more to bring the attention that this can be a
potential issue on the engine since other places can have the same issue or
even non-internals extensions can generate this kind of weirdness. I wonder
if doing this can cause some security issue.
thanks for reporting this. :)

Nice catch, I will take care of it

Thanks

Thanks,
Juan Basso

Hey：

I was testing CakePHP framework with PHP 7 and some tests were failing.
Digging into the issue I found that using compact in a certain way can
cause PHP to create an array with length but no content inside.

I reported and added some examples on how to reproduce on
https://bugs.php.net/bug.php?id=69198

I'm sending this email more to bring the attention that this can be a
potential issue on the engine since other places can have the same issue or
even non-internals extensions can generate this kind of weirdness. I wonder
if doing this can cause some security issue.

Should be fixed now

Thanks

Thanks,
Juan Basso