PHP | Ds\Set contains() Function
Last Updated :
22 Aug, 2019
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The Ds\Set::contains() function is an inbuilt function in PHP which is used to check the given value exists in the set or not. This function compares the value and its type.
Syntax:
php
php
bool public Ds\Set::contains( $values )Parameters: This function accepts a single or many values which need to check the value exist in the set or not. Return value: If value exist in the set then it returns True otherwise returns False. Below programs illustrate the Ds\Set::contains() function in PHP: Program 1:
<?php
// Declare new Set
$set = new \Ds\Set(['G', 'e', 'e', 'k', 's', 5, 2, 7]);
// Use contains() function to check elements
// exist in the Set or not
var_dump($set->contains('G'));
var_dump($set->contains('k'));
var_dump($set->contains('p'));
var_dump($set->contains(7));
var_dump($set->contains('5'));
?>
Output:
Program 2:
bool(true) bool(true) bool(false) bool(true) bool(false)
<?php
// Declare new Set
$set = new \Ds\Set(['G', 'e', 'e', 'k', 's', 5, 2, 7]);
// Use contains() function to check elements
// exist in the Set or not
var_dump($set->contains('G', 'e'));
var_dump($set->contains('k', 'e', 7));
var_dump($set->contains('p', '1'));
var_dump($set->contains(7, 1));
var_dump($set->contains('5', 5));
?>
Output:
Reference: http://php.net/manual/en/ds-set.contains.php
bool(true) bool(true) bool(false) bool(false) bool(false)
