Ds\Set::xor

(PECL ds >= 1.0.0)

Ds\Set::xor — Creates a new set using values in either the current instance or in another set, but not in both.

public Ds\Set Ds\Set::xor ( Ds\Set $set )

Creates a new set containing values in the current instance as well as another set, but not in both.

A ⊖ B = {x : x ∈ (A \ B) ∪ (B \ A)}

A new set containing values in the current instance as well as another set, but not in both.

例1 Ds\Set::xor() example


<?php
$a = new \Ds\Set([1, 2, 3]);
$b = new \Ds\Set([3, 4, 5]);

var_dump($a->xor($b));
?>

上の例の出力は、たとえば以下のようになります。

object(Ds\Set)#3 (4) {
  [0]=>
  int(1)
  [1]=>
  int(2)
  [2]=>
  int(4)
  [3]=>
  int(5)
}