Re: [ZEND-ENGINE-CVS] cvs: ZendEngine2(PHP_5_3) / zend_extensions.c zend_extensions.h

Christopher Jones wrote:
> 
> 
> Stanislav Malyshev wrote:
>> Hi!
>>
>>> I'm looking forward to reading at least a mail note describing what 
>>> extension
>>> maintainers can/can't do with this.
>>
>> Basically you can make your Zend extension load with any API number 
>> and any build ID (or let it decide with which ID to load and with 
>> which one not to).
>> Prior to 5.3 and build IDs, you could do that for API number using api 
>> check callback, but not for other things like thread safety, etc.
>>
>> This is a dangerous functionality - as extension using this API should 
>> either not use most of the engine API or take care to use correct 
>> structures, etc. for every version. But for some applications it may 
>> be required.
> 
> Is this Zend extensions only? 

Yes.

> Is it safe to set in extensions that should
> work with pre 5.3 PHP's?

Yes, in php5.2 and below build_id just won't be checked ans this 
callback won't be called.

> Did I lose track of the other API versioning change - the one that was 
> about
> to change the structure size. Or is this it but just applied to Zend 
> extensions?

It's applied only to zend_extensions and doesn't change the structure 
size as it has some reserved space.

Thanks. Dmitry.

> Chris
>