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Subject: Moving to an AST-based parsing/compilation process
From: nikita.ppv@gmail.com (Nikita Popov)

Hey folks!

Some people asked me what the advantages of using an AST-based
parsing/compilation process are, so I put together a few quick notes
in an RFC:

https://wiki.php.net/rfc/ast_based_parsing_compilation_process

It would be nice to get a few comments from other core devs on this.

Nikita