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SitePoint PHP Blog:
Lexical scope to appear in PHP?
December 25, 2007 @ 09:46:00

<> In this new post to the SitePoint PHP blog, Troels Knak-Nielsen talks about some of the advancements (and diagreements) that have happened around adding lexical scope to the create_function functionality.

The main argument against approving the patch, seems to be, that one would expect static scoping rules to apply to the anonymous function. After all, this is the case in similar languages, which support anonymous functions. One could only assume, that changing PHP to support this, would be a major undertaking.

One would be wrong, it seems.

A patch has been made to add the functionality (from Christian Seller) adding a new keyword, lexical, to make it all work.

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