SplSubject::attach
(PHP 5 >= 5.1.0, PHP 7)
SplSubject::attach — Attach an SplObserver
Description
abstract public SplSubject::attach ( SplObserver $observer ) : void
Attaches an SplObserver so that it can be notified of updates.
Warning
This function is currently not documented; only its argument list is available.
Parameters
-
observer -
The SplObserver to attach.
Return Values
No value is returned.
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https://www.php.net/manual/en/splsubject.attach.php