GoLang Ds\Set::intersect

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PHP Ds\Set::intersect

PHP original manual for Ds\Set::intersect [ show | php.net ]

Ds\Set::intersect

(PECL ds >= 1.0.0)

Ds\Set::intersectCreates a new set by intersecting values with another set

Description

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

Creates a new set using values common to both the current instance and another set. In other words, returns a copy of the current instance with all values removed that are not in the other set.

A ∩ B = {x : x ∈ A ∧ x ∈ B}

Parameters

set

The other set.

Return Values

The intersection of the current instance and another set.

See Also

Examples

Example #1 Ds\Set::intersect() example

<?php
$a 
= new \Ds\Set([123]);
$b = new \Ds\Set([345]);

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

The above example will output something similar to:

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