Passing Addition Variables to a PHP Anonymous functions

            'update' => function($url) use ($pjaxContainer) {
                return Html::a(FAS::icon(FAS::_PENCIL_ALT),
                    $url,
                    [
                        'title' => 'Update',
                        'aria-label' => 'Update',
                        'data-action' => 'update',
                        'data-request' => $url,
                        'data-title' => 'TWD Q&A',
                        'data-pjax-container' => '#'.$pjaxContainer,
                        'class' => 'twd-quiz-record-action',
                        'style' => 'margin-right: 10px;',
                    ]);
            },