Php/docs/splobjectstorage.attach
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SplObjectStorage::attach
(PHP 5 >= 5.1.0, PHP 7)
SplObjectStorage::attach — Adds an object in the storage
Description
public SplObjectStorage::attach
( object $object
[, mixed $data = NULL
] ) : void
Adds an object inside the storage, and optionally associate it to some data.
Parameters
object- The object to add.
data- The data to associate with the object.
Return Values
No value is returned.
Examples
Example #1 SplObjectStorage::attach() example
<?php$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]);?>
The above example will output something similar to:
NULL string(5) "hello"
See Also
- SplObjectStorage::detach() - Removes an object from the storage
- SplObjectStorage::offsetSet() - Associates data to an object in the storage
