Ds\Set::contains

(PECL ds >= 1.0.0)

Ds\Set::contains — Determines if the set contains all values

Description

public Ds\Set::contains(mixed ...$values): bool

Determines if the set contains all values.

Note:
Values of type object are supported. If an object implements Ds\Hashable, equality will be determined by the object's equals function. If an object does not implement Ds\Hashable, objects must be references to the same instance to be considered equal.

Attention

All comparisons are strict (type and value).

Liste de paramètres

values: Values to check.

Valeurs de retour

false if any of the provided values are not in the set, true otherwise.

Exemples

Exemple #1 Ds\Set::contains() example

<?php
$set = new \Ds\Set([1, 2, 3]);

var_dump($set->contains(1));                // true
var_dump($set->contains(1, 2));             // true
var_dump($set->contains(...[1, 2]));        // true

var_dump($set->contains("1"));              // false
var_dump($set->contains(...[1, 2, 3, 4]));  // false

var_dump($set->contains(...[]));            // true
?>

Résultat de l'exemple ci-dessus est similaire à :

bool(true)
bool(true)
bool(true)
bool(false)
bool(false)
bool(true)

add a note

User Contributed Notes

There are no user contributed notes for this page.