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SplObjectStorage::attach

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

SplObjectStorage::attach — Adds an object in the storage

Beschreibung

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

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

Parameter-Liste

object

The object to add.

info

The data to associate with the object.

Rückgabewerte

Es wird kein Wert zurückgegeben.

Beispiele

Beispiel #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]);

?>

Das oben gezeigte Beispiel erzeugt eine ähnliche Ausgabe wie:

NULL
string(5) "hello"

Siehe auch