SplObjectStorage::removeAllExcept

(PHP 5 >= 5.3.6, PHP 7, PHP 8)

SplObjectStorage::removeAllExceptRemoves all objects except for those contained in another storage from the current storage

Beschreibung

public SplObjectStorage::removeAllExcept(SplObjectStorage $storage): int

Removes all objects except for those contained in another storage from the current storage.

Parameter-Liste

storage

The storage containing the elements to retain in the current storage.

Rückgabewerte

Returns the number of remaining objects.

Beispiele

Beispiel #1 SplObjectStorage::removeAllExcept() example

<?php
$a
= (object) 'a';
$b = (object) 'b';
$c = (object) 'c';

$foo = new SplObjectStorage;
$foo->attach($a);
$foo->attach($b);

$bar = new SplObjectStorage;
$bar->attach($b);
$bar->attach($c);

$foo->removeAllExcept($bar);
var_dump($foo->contains($a));
var_dump($foo->contains($b));
?>

Das oben gezeigte Beispiel erzeugt eine ähnliche Ausgabe wie:

bool(false)
bool(true)

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User Contributed Notes 2 notes

up
0
kirk at wa dot net dot ua
11 years ago
You may remove all elements by passing empty SplObjectStorage

$splStorage->removeAllExcept(new SplObjectStorage());
up
-1
hizer at hizercache dot com
7 years ago
The example Kirk provided is not the best option, there's a method "removeAll" that you can pass the SplObjectStore itself, and as the name says, remove all stored objects.
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