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Ds\Set::intersect

Ds\Set::intersect

(PECL ds >= 1.0.0)

Ds\Set::intersect — Creates 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}