(PHP 5 >= 5.1.0, PHP 7)
Adds an object in the storage
public void SplObjectStorage::attach ( object $object [, mixed $data = NULL ] )
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.
Returns:
No value is returned.
Changelog:
5.3.0
Added the data
parameter.
Examples:
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:
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