= 5.1.0, PHP 7, PHP 8)SplObjectStorage::attach — Adds an object in the storage說明public SplObjectStorage::attach(object">

SplObjectStorage::attach

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

SplObjectStorage::attach — Adds an object in the storage

說明

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

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

參數(shù)

object

The object to add.

info

The data to associate with the object.

返回值

沒有返回值。

范例

示例 #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]);

?>

以上例程的輸出類似于：

NULL
string(5) "hello"

參見