SplObjectStorage
PHP Manual

SplObjectStorage::offsetExists

(PHP 5 >= 5.3.0)

SplObjectStorage::offsetExistsChecks whether an object exists in the storage

Описание

public boolean SplObjectStorage::offsetExists ( object $object )

Checks whether an object exists in the storage.

Параметри

object

The object to look for.

Връщани стойности

Returns TRUE if the object exists in the storage, and FALSE otherwise.

Примери

Example #1 SplObjectStorage::offsetExists() example

<?php
$s 
= new SplObjectStorage;
$o1 = new StdClass;
$o2 = new StdClass;

$s->attach($o1);

var_dump($s->offsetExists($o1)); // Similar to isset($s[$o1])
var_dump($s->offsetExists($o2)); // Similar to isset($s[$o2])
?>

Примерът по-горе ще изведе нещо подобно на:

bool(true)
bool(false)

Вж. също


SplObjectStorage
PHP Manual