Ds\Set::xor
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.
Description
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)}
Parameters
-
set
-
The other set.
Return Values
A new set containing values in the current instance as well as another set
, but not in both.
See Also
- » Symmetric Difference on Wikipedia
Examples
Example #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)); ?>
The above example will output something similar to:
object(Ds\Set)#3 (4) { [0]=> int(1) [1]=> int(2) [2]=> int(4) [3]=> int(5) }
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https://secure.php.net/manual/en/ds-set.xor.php