This is an area where a number of us are brainstorming and developing ideas around the proposal for an improved interface between the PHP Virtual Machine and its extensions.

• We assume that the extensions may exist in in a different address space to the VM. The extensions must not assume that they can read or write VM memory.
• We assume that the extensions cannot use any extension interfaces other than those documented in the interface.
• We assume that whilst there will be (are) many VMs implementing PHP, there should only be one set of extensions which run unchanged on all VMs.

• Allow through user code in extensions
  • hashtables are part of the language proper
  • Is user code available in extensions already (there are .inc files)

http://www.php.net/manual/en/reserved.variables.phperrormsg.php

We do not want to spam internals with hundreds of emails about our musings as we bounce ideas around but we do want to do this in the open hence this page. The folks currently involved in the discussion are as follows. If you are interested in the discussion or feel we are going about things in the wrong way please contact us:

• Rob Nicholson (nicholsr@php.net)
• Andy Wharmby (wharmby@php.net)
• Iain Lewis (??iains id??)
• Paul Biggar (paul.biggar@gmail.com)