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williamsampaio/slim-flash-messages
==================================

Slim Framework Flash message service provider

0.3.2(1y ago)129MITPHPPHP ^8.0

Since Aug 10Pushed 1y ago1 watchersCompare

[ Source](https://github.com/WilliamSampaio/Slim-Flash-Messages)[ Packagist](https://packagist.org/packages/williamsampaio/slim-flash-messages)[ Docs](https://github.com/WilliamSampaio/Slim-Flash-Messages)[ RSS](/packages/williamsampaio-slim-flash-messages/feed)WikiDiscussions master Synced 1mo ago

READMEChangelog (6)Dependencies (8)Versions (7)Used By (0)

Slim Flash Messages
===================

[](#slim-flash-messages)

[![Coveralls](https://camo.githubusercontent.com/d7a877047959864eeaa7b0056a450935adb30f5691411457e563344fd29c8875/68747470733a2f2f696d672e736869656c64732e696f2f636f766572616c6c73436f7665726167652f6769746875622f57696c6c69616d53616d7061696f2f536c696d2d466c6173682d4d657373616765733f7374796c653d666c61742d737175617265266c6f676f3d636f766572616c6c73266b696c6c5f63616368653d31)](https://camo.githubusercontent.com/d7a877047959864eeaa7b0056a450935adb30f5691411457e563344fd29c8875/68747470733a2f2f696d672e736869656c64732e696f2f636f766572616c6c73436f7665726167652f6769746875622f57696c6c69616d53616d7061696f2f536c696d2d466c6173682d4d657373616765733f7374796c653d666c61742d737175617265266c6f676f3d636f766572616c6c73266b696c6c5f63616368653d31)[![Packagist 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This library allows you to use temporary messages in your Slim project. It is easily integrated with the Twig template system, through an extension that provides functions to grab and use in the template. It is not limited to creating simple message strings but also allows the use of other data types such as arrays.

Install
-------

[](#install)

```
composer require williamsampaio/slim-flash-messages
```

Usage Examples (Slim 4)
-----------------------

[](#usage-examples-slim-4)

```
// app/dependencies.php

//...
use SlimFlashMessages\Flash;
use SlimFlashMessages\FlashProviderInterface;

return function (ContainerBuilder $containerBuilder) {
    $containerBuilder->addDefinitions([
        //...
        FlashProviderInterface::class => function () {
            return Flash::getInstance();
        },
    ]);
};
```

```
// app/middleware.php

//...
// use SlimFlashMessages\FlashMiddleware;
use SlimFlashMessages\FlashTwigExtension;

return function (App $app) {
    //...
    // Optional if you are working with dependency injection,
    // using the middleware is only useful if you need to obtain the Flash instance from request.
    // $app->add(FlashMiddleware::createFromContainer($app));

    // With Twig
    $twig = Twig::create(__DIR__ . '/../templates', ['cache' => false]);
    $twig->addExtension(FlashTwigExtension::createFromContainer($app));
    $app->add(TwigMiddleware::create($app, $twig));
};
```

```
// Your controller

//...
use Slim\Views\Twig;
// use SlimFlashMessages\FlashProvider;
use SlimFlashMessages\FlashProviderInterface;

class YourController
{
    private $flash;
    private $view;

    public function __construct(FlashProviderInterface $flash, Twig $view)
    {
        $this->flash = $flash;
        $this->view = $view;
    }

    public function index(ServerRequestInterface $request, ResponseInterface $response)
    {
        // If you are working with middleware instead of dependency injection it will be this way.
        // $flash = FlashProvider::fromRequest($request);

        $this->flash->add('messages', 'Hello!');

        return $this->view->render($response, 'template.twig');
    }

    //...
}
```

```
{# template.twig #}
{% for msg in flash('messages') %}
    {{ msg }}
{% endfor %}
```

### Simplest possible

[](#simplest-possible)

Twig integration is not mandatory, as you can see in this example, where the focus is on demonstrating the messaging provider API.

```