uksort
uksort
(PHP 4, PHP 5, PHP 7)
uksort — Sort an array by keys using a user-defined comparison function
Description
bool uksort ( array &$array , callable $key_compare_func )
uksort() will sort the keys of an array using a user-supplied comparison function. If the array you wish to sort needs to be sorted by some non-trivial criteria, you should use this function.
Note:
If two members compare as equal, their relative order in the sorted array is undefined.