php - Why doesn't end(( )) throw a strict notice? -


this question has answer here:

end(array_keys(array(0))) says php strict standards: variables should passed reference ( http://3v4l.org/cnlvt )

end((array_keys(array(0)))) on other hand, works ( http://3v4l.org/168fi ). why?

the vld decompiler shows same opcodes being ran difference in ext column can't find documentation on means.

what's happening array_keys passing result reference. such, php throwing notice shouldn't that.

wrapping in parenthesis changes reference , forces php evaluate statement inside first. such, removes reference. 1 of weird things doesn't makes difference does.

more on weirdness here http://phpsadness.com/sad/51


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