{{ strtoupper(__('app.url')) }} {!! Form::text('config[override_url]', null, array('placeholder' => __('app.apps.override'), 'id' => 'override_url', 'class' => 'form-control')) !!}

{{ __('app.apps.apikey') }} {!! Form::text('config[apikey]', null, array('placeholder' => __('app.apps.apikey'), 'data-config' => 'apikey', 'class' => 'form-control config-item')) !!}

Test