SplObjectStorage::attach

(PHP 5 >= 5.1.0, PHP 7, PHP 8)

SplObjectStorage::attachAdds an object in the storage

Descrizione

public SplObjectStorage::attach(object $object, mixed $info = null): void

Adds an object inside the storage, and optionally associate it to some data.

Elenco dei parametri

object

The object to add.

info

The data to associate with the object.

Valori restituiti

Nessun valore viene restituito.

Esempi

Example #1 SplObjectStorage::attach() example

<?php
$o1 
= new StdClass;
$o2 = new StdClass;
$s = new SplObjectStorage();
$s->attach($o1); // similar to $s[$o1] = NULL;
$s->attach($o2"hello"); // similar to $s[$o2] = "hello";

var_dump($s[$o1]);
var_dump($s[$o2]);

?>

Il precedente esempio visualizzerĂ  qualcosa simile a:

NULL
string(5) "hello"

Vedere anche:

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