Difference between revisions of "JObservable/attach"
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< API15:JObservable
(New page: ===Description===
Attach an observer object
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===Syntax=== | ===Syntax=== | ||
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| $observer An observer object to attach | | $observer An observer object to attach | ||
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===Examples=== | ===Examples=== | ||
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Revision as of 13:38, 12 May 2013
The "API15" namespace is an archived namespace. This page contains information for a Joomla! version which is no longer supported. It exists only as a historical reference, it will not be improved and its content may be incomplete and/or contain broken links.
Description[edit]
Attach an observer object
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Syntax[edit]
attach(&$observer)| Parameter Name | Default Value | Description |
|---|---|---|
| &$observer | $observer An observer object to attach |
Returns[edit]
void
Defined in[edit]
libraries/joomla/base/observable.php
Importing[edit]
jimport( 'joomla.base.observable' );Source Body[edit]
function attach( &$observer)
{
// Make sure we haven't already attached this object as an observer
if (is_object($observer))
{
$class = get_class($observer);
foreach ($this->_observers as $check) {
if (is_a($check, $class)) {
return;
}
}
$this->_observers[] =& $observer;
} else {
$this->_observers[] =& $observer;
}
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Examples[edit]
<CodeExamplesForm />