UASORT
Sort an array with a user-defined comparison function and maintain index association
SYNTAX
uasort ( array &$array , callable $value_compare_func ) : bool
PARAMETERS
array
The input array.
value_compare_func
See usort() and uksort() for examples of user-defined comparison functions.
RETURN
Returns TRUE on success or FALSE on failure.
EXAMPLES
Array
(
[a] => 4
[b] => 8
[c] => -1
[d] => -9
[e] => 2
[f] => 5
[g] => 3
[h] => -4
)
Array
(
[d] => -9
[h] => -4
[c] => -1
[e] => 2
[g] => 3
[a] => 4
[f] => 5
[b] => 8
)