Hello, Great patch and a much needed feature. One thing I do not agree with is the point in the lexical key word, seems it should be natural to inherit the outer scope. I guess the choice of adding lexical and going slightly against the grain of typical closure implementations like scheme or ecmascript is that is not really consistent with php so i can understand disagreement and your note you made on performance. Seems like the right choice to force manual inheritance of outer scope. But great work on this, hope it gets added and none of the core developers say it is not the php way or is only useful in brainless languages.
-Chris
