/**
* Returns the proper callable method for the form handler callback method given.
*
* Allows users to specify callbacks using the common name without having to remember to add "FormHandler" to each class name.
*
* @param callable $callback The callback method to get the true method for.
*
* @return callable Returns the REAL callable method to be used for the form handler.
*/
public static function cache_form_callback($callback)
{
if (!is_string($callback) && (!is_array($callback) || !array_key_exists(0, $callback))) {
return null;
}
if (!is_string($callback) && !is_array($callback) || is_string($callback) && strpos($callback, '::') === false || is_array($callback) && !is_string($callback[0])) {
return null;
}
return get::static_callable($callback, 'FormHandler');
}
