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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

Descrição

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

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

Parâmetros

storage

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

Valor Retornado

Returns the number of removed objects.

Exemplos

Exemplo #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));
?>

O exemplo acima irá imprimir algo similar à:

bool(false)
bool(true)

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User Contributed Notes 2 notes

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

$splStorage->removeAllExcept(new SplObjectStorage());
up
-1
hizer at hizercache dot com
5 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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