ArrayIterator::uksort

(PHP 5 >= 5.2.0, PHP 7)

ArrayIterator::uksort — Sort by keys using a user-defined comparison function

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public ArrayIterator::uksort ( callable $cmp_function ) : void

This method sorts the elements by keys using a user-supplied comparison function.

Note:

If two members compare as equal, their relative order in the sorted array is undefined.

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cmp_function

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callback ( mixed $a, mixed $b ) : int

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