PHP SplObjectStorage offsetExists() Function
Last Updated :
23 Jun, 2023
The SplObjectStorage::offsetExists() function is an inbuilt function in PHP which is used to check the object exist in storage or not.
Syntax:
bool SplObjectStorage::offsetExists($object)
Parameters: This function accepts a single parameter $object which specifies the object to be checked.
Return Value: This function returns true if the object exists in storage otherwise return false.
Below programs illustrate the SplObjectStorage::offsetExists() function in PHP:
Program 1:
php
<?php
$str = new SplObjectStorage;
$obj = new StdClass;
$str ->attach( $obj );
var_dump( $str ->offsetExists( $obj ));
?>
|
Program 2:
php
<?php
$str = new SplObjectStorage();
$obj1 = new StdClass;
$obj2 = new StdClass;
$obj3 = new StdClass;
$obj4 = new StdClass;
$str ->attach( $obj1 , "GeksforGeeks" );
$str ->attach( $obj2 , "GFG" );
$str ->attach( $obj3 );
var_dump( $str ->offsetExists( $obj1 ));
var_dump( $str ->offsetExists( $obj2 ));
var_dump( $str ->offsetExists( $obj4 ));
var_dump( $str ->offsetExists( $obj3 ));
?>
|
Output:
bool(true)
bool(true)
bool(false)
bool(true)
Reference: https://www.php.net/manual/en/splobjectstorage.offsetexists.php
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