code/error/error.php
public static function handleCallback(&$error, $options)
	{
		JLog::add('JError::handleCallback() is deprecated.', JLog::WARNING, 'deprecated');

		return call_user_func($options, $error);
	}
public static function handleCallback(&$error, $options)
	{
		JLog::add('JError::handleCallback() is deprecated.', JLog::WARNING, 'deprecated');

		return call_user_func($options, $error);
	}
public static function handleCallback ( & $ error , $ options ) { JLog :: add ( 'JError::handleCallback() is deprecated.' , JLog :: WARNING , 'deprecated' ) ; return call_user_func ( $ options , $ error ) ; }
Callback error handler
- Send the error object to a callback method for error handling

@param   JException  &$error   Exception object to handle
@param   array       $options  Handler options

@return  JException  The exception object

@deprecated  12.1
@see         JError::raise()
@since       11.1
Callback error handler - Send the error object to a callback method for error handling