Creates a Closure that sorts an array or iterable by key in ascending order, preserving key-value associations.
/**
* @param int $flag PHP sort flag constant.
* @return Closure(iterable<int|string, mixed>):mixed[]
*/
Arrays\ksort(int $flag = SORT_REGULAR): ClosureWhen Arrays\ksort() is called, it returns the following Closure which can be used like a regular function.
/**
* @param iterable<int|string, mixed> $source
* @return mixed[]
*/
$function (iterable $source): arrayThis can be used to create a simple closure which can be used as a regular function.
$byKey = Arrays\ksort();
print_r($byKey(['b' => 2, 'a' => 1]));
// ['a' => 1, 'b' => 2]