(PECL ds >= 1.0.0)
Ds\Map::sorted — Returns a copy, sorted by value
Returns a copy, sorted by value using an optional comparator
function.
comparator
La fonction de comparaison doit retourner un entier inférieur à, égal à, ou supérieur à 0 si le premier argument est considéré comme, respectivement, inférieur à, égal à, ou supérieur au second.
Returning non-integer values from the comparison function, such as float, will result in an internal cast to int of the callback's return value. So values such as 0.99 and 0.1 will both be cast to an integer value of 0, which will compare such values as equal.
Returns a copy of the map, sorted by value.
Exemple #1 Ds\Map::sort() example
<?php
$map = new \Ds\Map(["a" => 2, "b" => 3, "c" => 1]);
print_r($map->sorted());
?>
Résultat de l'exemple ci-dessus est similaire à :
Ds\Map Object ( [0] => Ds\Pair Object ( [key] => c [value] => 1 ) [1] => Ds\Pair Object ( [key] => a [value] => 2 ) [2] => Ds\Pair Object ( [key] => b [value] => 3 ) )
Exemple #2 Ds\Map::sort() example using a comparator
<?php
$map = new \Ds\Map(["a" => 2, "b" => 3, "c" => 1]);
// Reverse
$sorted = $map->sorted(function($a, $b) {
return $b <=> $a;
});
print_r($sorted);
?>
Résultat de l'exemple ci-dessus est similaire à :
Ds\Map Object ( [0] => Ds\Pair Object ( [key] => b [value] => 3 ) [1] => Ds\Pair Object ( [key] => a [value] => 2 ) [2] => Ds\Pair Object ( [key] => c [value] => 1 ) )