Slim Framework Twig View

This is a Slim Framework view helper built on top of the Twig templating component. You can use this component to create and render templates in your Slim Framework application.

Install

Via Composer

composer require slim/twig-view

Requires Slim Framework 4, Twig 3 and PHP 7.4 or newer.

Usage

With DI Container

use DI\Container;
use Slim\Factory\AppFactory;
use Slim\Views\Twig;
use Slim\Views\TwigMiddleware;

require __DIR__ . '/../vendor/autoload.php';

// Create Container
$container = new Container();

// Set view in Container
$container->set(Twig::class, function() {
    return Twig::create(__DIR__ . '/../templates', ['cache' => 'path/to/cache']);
});

// Create App from container
$app = AppFactory::createFromContainer($container);

// Add Twig-View Middleware
$app->add(TwigMiddleware::create($app, $container->get(Twig::class)));

// Add other middleware
$app->addRoutingMiddleware();
$app->addErrorMiddleware(true, true, true);

// Render from template file templates/profile.html.twig
$app->get('/hello/{name}', function ($request, $response, $args) {
    $viewData = [
        'name' => $args['name'],
    ];

    $twig = $this->get(Twig::class);

    return $twig->render($response, 'profile.html.twig', $viewData);
})->setName('profile');

// Render from string
$app->get('/hi/{name}', function ($request, $response, $args) {
    $viewData = [
        'name' => $args['name'],
    ];

    $twig = $this->get(Twig::class);
    $str = $twig->fetchFromString('<p>Hi, my name is {{ name }}.</p>', $viewData);
    $response->getBody()->write($str);

    return $response;
});

// Run app
$app->run();

Without DI container

use Slim\Factory\AppFactory;
use Slim\Views\Twig;
use Slim\Views\TwigMiddleware;

require __DIR__ . '/../vendor/autoload.php';

// Create App
$app = AppFactory::create();

// Create Twig
$twig = Twig::create('path/to/templates', ['cache' => 'path/to/cache']);

// Add Twig-View Middleware
$app->add(TwigMiddleware::create($app, $twig));

// Define named route
$app->get('/hello/{name}', function ($request, $response, $args) {
    $view = Twig::fromRequest($request);
    return $view->render($response, 'profile.html.twig', [
        'name' => $args['name']
    ]);
})->setName('profile');

// Render from string
$app->get('/hi/{name}', function ($request, $response, $args) {
    $view = Twig::fromRequest($request);
    $str = $view->fetchFromString(
        '<p>Hi, my name is {{ name }}.</p>',
        [
            'name' => $args['name']
        ]
    );
    $response->getBody()->write($str);

    return $response;
});

// Run app
$app->run();

Custom template functions

TwigExtension provides these functions to your Twig templates:

• url_for() - returns the URL for a given route. e.g.: /hello/world
• full_url_for() - returns the URL for a given route. e.g.: https://www.example.com/hello/world
• is_current_url() - returns true is the provided route name and parameters are valid for the current path.
• current_url() - returns the current path, with or without the query string.
• get_uri() - returns the UriInterface object from the incoming ServerRequestInterface object
• base_path() - returns the base path.

You can use url_for to generate complete URLs to any Slim application named route and use is_current_url to determine if you need to mark a link as active as shown in this example Twig template:

<h1>User List</h1>
<ul>
    <li><a href="{{ url_for('profile', { 'name': 'josh' }) }}" {% if is_current_url('profile', { 'name': 'josh' }) %}class="active"{% endif %}>Josh</a></li>
    <li><a href="{{ url_for('profile', { 'name': 'andrew' }) }}">Andrew</a></li>
</ul>

Tests

To execute the test suite, you'll need to clone the repository and install the dependencies.

$ git clone https://github.com/slimphp/Twig-View
$ composer install
$ composer test

Contributing

Please see CONTRIBUTING for details.

Security

If you discover any security related issues, please email [email protected] instead of using the issue tracker.

Credits

• Josh Lockhart
• Pierre Bérubé

License

The MIT License (MIT). Please see License File for more information.