SplObjectStorage::offsetExists

(PHP 5 >= 5.3.0)

SplObjectStorage::offsetExistsChecks whether an object exists in the storage

Description

public bool SplObjectStorage::offsetExists ( object $object )

Checks whether an object exists in the storage.

Note:

SplObjectStorage::offsetExists() is an alias of SplObjectStorage::contains().

Parameters

object

The object to look for.

Return Values

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

Examples

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])
?>

The above example will output something similar to:

bool(true)
bool(false)

See Also

Коментарии

$st = new StdClass();
$st1 = new StdClass();   
$splobj = new SplObjectStorage();
$splobj->attach($st,"Test");
$splobj->attach($st1,"Test 123");

var_dump ( $splobj->contains( $st ) ) ;
var_dump ( $splobj->contains( $st1 ) ) ;

var_dump ( $splobj->offsetExists( $st ) ) ;
var_dump ( $splobj->offsetExists( $st1 ) ) ;

offsetExists is an alias of contains ??????
2011-07-14 04:01:25
http://php5.kiev.ua/manual/ru/splobjectstorage.offsetexists.html

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