(PECL ds >= 1.0.0)
Ds\Set::union — Creates a new set using values from the current instance and another set
Creates a new set that contains the values of the current instance as well as the values of another set.
A ∪ B = {x: x ∈ A ∨ x ∈ B}
setThe other set, to combine with the current instance.
A new set containing all the values of the current instance as well as another set.
Ejemplo #1 Ds\Set::union() example
<?php
$a = new \Ds\Set([1, 2, 3]);
$b = new \Ds\Set([3, 4, 5]);
var_dump($a->union($b));
?>El resultado del ejemplo sería algo similar a:
object(Ds\Set)#3 (5) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(4) [4]=> int(5) }