gistfile1.aw

class functions {
    public static function make_callback($function) {
        if (is_array($function) || strpos($function,'::') === false) {
            if (! is_callable($function)) {
                if (tep_in_sandbox()) {
                    tep_die_deprecated("Called nonexistent function '$function' in functions::make_callback");
                } else {
                    dusty_record_value("bad_function_calls", $function);
                }
            }
            return $function;
        } else {

            list($class, $method) = explode('::', $function);

            if (! method_exists(new $class, $method)) {
                if (tep_in_sandbox()) {
                    tep_die_deprecated("Called nonexistent method '$method' in functions::make_callback");
                } else {
                    dusty_record_value("bad_function_calls", $method);
                }
            }

            return array($class, $method);
        }
    }

    public static function make_callback_without_import($function) {
        if (is_array($function) || strpos($function,'::') === false) {
            return $function;
        } else {
            list($class, $method) = explode('::',$function);
            return array($class, $method);
        }
    }
}