Name
HTML_Progress2::addListener
— Attachs a new observer
Synopsis
require_once 'HTML/Progress2.php';
void HTML_Progress2::addListener( |
$callback,
|
|
|
$nName = EVENT_DISPATCHER_GLOBAL) ; |
|
mixed |
$callback; |
string |
$nName = EVENT_DISPATCHER_GLOBAL; |
Description
Adds a new observer to the Event Dispatcher that will listen for all messages emitted by this HTML_Progress2 instance.
Parameter
- mixed
$callback
-
PHP callback that will act as listener
- string
$nName
-
(optional) Expected notification name, serves as a filter
Throws
throws HTML_PROGRESS2_ERROR_INVALID_CALLBACK, HTML_PROGRESS2_ERROR_INVALID_INPUT
Note
since 2.0.0
This function can not be called statically.