Ds\Set::union
(PECL ds >= 1.0.0)
Ds\Set::union — Creates a new set using values from the current instance and another set
Description
public Ds\Set::union ( Ds\Set $set ) : Ds\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}
Parameters
-
set
-
The other set, to combine with the current instance.
Return Values
A new set containing all the values of the current instance as well as another set
.
See Also
- » Union on Wikipedia
Examples
Example #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)); ?>
The above example will output something similar to:
object(Ds\Set)#3 (5) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(4) [4]=> int(5) }
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https://www.php.net/manual/en/ds-set.union.php