Marcus Boerger wrote:
> - the tokenizer works a bit different as tokenizing works better now, that
>   is uses less tokens.
> - the scanner is about 20% faster, overall execution is about 2% faster
>   when not using compiler caches like APC
> - in some edgecases error messages are no longer corrupted

I'm not so much interested in performance changes as in end-user
behavior changes; will this affect *any* PHP code, or is it completely
backwards-compatible? (not counting multibyte support, of course) Some
possible areas I'm thinking based on browsing the patch are the
tokenizer functions, the ini parser interface, filename limits, cli
interface, etc.

It looks like some of the compilation docs/toolsets will need to be
updated. I'll try compiling 5.3 on Windows later today.

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