Name
HTML_Progress2::addListener —
Attachs a new observer
Synopsis
require_once 'HTML/Progress2.php';
void HTML_Progress2::addListener(
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$callback,
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$nName =
EVENT_DISPATCHER_GLOBAL);
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mixed
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$callback;
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string
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$nName = EVENT_DISPATCHER_GLOBAL;
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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.
