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Ds\Map::ksorted — Returns a copy, sorted by key
Returns a copy sorted by key, using an optional comparator function.
comparatorThe comparison function must return an integer less than, equal to, or greater than zero if the first argument is considered to be respectively less than, equal to, or greater than the second.
Returns a copy of the map, sorted by key.
Example #1 Ds\Map::ksorted() example
<?php
$map = new \Ds\Map(["b" => 2, "c" => 3, "a" => 1]);
print_r($map->ksorted());
?>The above example will output something similar to:
Ds\Map Object
Ds\Map Object
(
[0] => Ds\Pair Object
(
[key] => a
[value] => 1
)
[1] => Ds\Pair Object
(
[key] => b
[value] => 2
)
[2] => Ds\Pair Object
(
[key] => c
[value] => 3
)
)
Example #2 Ds\Map::ksorted() example using a comparator
<?php
$map = new \Ds\Map([1 => "x", 2 => "y", 0 => "z"]);
// Reverse
$sorted = $map->ksorted(function($a, $b) {
return $b <=> $a;
});
print_r($sorted);
?>The above example will output something similar to:
Ds\Map Object
Ds\Map Object
(
[0] => Ds\Pair Object
(
[key] => 2
[value] => y
)
[1] => Ds\Pair Object
(
[key] => 1
[value] => x
)
[2] => Ds\Pair Object
(
[key] => 0
[value] => z
)
)