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

Descrizione

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

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

Elenco dei parametri

storage

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

Valori restituiti

Returns the number of remaining objects.

Esempi

Example #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));
?>

Il precedente esempio visualizzerĂ  qualcosa simile a:

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
6 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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