PHP SplObjectStorage contains() Function

The SplObjectStorage::contains() function is an inbuilt function in PHP which is used to check the storage object contains a specified object or not. Syntax:

bool SplObjectStorage::contains( $value )

Parameters: This function accepts a single parameter $value which specifies the storage object which is going to check. Return Value: This function returns true if storage object contains specified object otherwise return false. Below programs illustrate the SplObjectStorage::contains() function in PHP: Program 1: php

<?php
$gfg1 = new StdClass;
$gfg2 = new StdClass;

// Declare Empty SplObjectStorage
$str = new SplObjectStorage();

$str[$gfg1] = "GeeksforGeeks";

// Print result
var_dump($str->contains($gfg1));
var_dump($str->contains($gfg2));

?>

Program 2: php

<?php
$gfg1 = new StdClass;
$gfg2 = new StdClass;

// Declare Empty SplObjectStorage
$str = new SplObjectStorage();

$str[$gfg1] = "GeeksforGeeks";

// Print result
var_dump($str->contains($gfg1));
var_dump($str->contains($gfg2));

// detach and print result
$str->detach($gfg1);
var_dump($str->contains($gfg1));

?>

Reference: https://www.php.net/manual/en/splobjectstorage.contains.php