Description:
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Since PHP 5.5 empty() supports arbitrary expressions, could PHP do same with reset() and end()?

I can simply add [0] to end of variable or function to get value of last element. However this approach does not work when I use arbitrary or non-integer keys. It is even more tricky when I want "just get last value" of array.

Expected result:
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I would welcome to be able to get first and last value of "any kind of array" like this:

reset(someFunction()); # returns value of first element

end(explode('/', '/very/long/path/to/filename.txt')); # returns filename without path (value of last element of explode())

Actual result:
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end([]); # Fatal error: Only variables can be passed by reference