setLocale - with callback

[nodashi404]

Hi guys.

Developers often need to alter system locale just for some particular task withing code and then return back to original locale. Wouldn't it be nice to have a setLocale method with second callback parameter that would set locale only for the execution of given closure?

I mean something like this:

/**
     * Set the current application locale.
     *
     * @param  string  $locale
     * @return void
     */
    public function setLocale($locale, Closure $callback = null)
    {
        if ($callback) {
            $original = $this->getLocale();
            $this->setLocale($locale);

            $callback();

            $this->setlocale($original);
            return ;
        }

        $this['config']->set('app.locale', $locale);

        $this['translator']->setLocale($locale);

        $this['events']->dispatch(new LocaleUpdated($locale));
    }

Or maybe introduce another method somethong like withLocale($locale, $callback). What do you think about it?