---
name: Slim
summary: "Slim is an open-source PHP project with 12.3k GitHub stars. It is associated with framework, micro-framework, php, php-micro-framework. The repository is actively maintained, with recent commits."
language: PHP
license: MIT
repo: https://github.com/slimphp/Slim
source: https://opensources.dev/resource/slim
health: 100
---

# Slim

Slim is an open-source PHP project with 12.3k GitHub stars. It is associated with framework, micro-framework, php, php-micro-framework. The repository is actively maintained, with recent commits.

# Slim Framework

[![Build Status](https://github.com/slimphp/Slim/actions/workflows/tests.yml/badge.svg?branch=4.x)](https://github.com/slimphp/Slim/actions/workflows/tests.yml?query=branch:4.x)
[![Coverage Status](https://coveralls.io/repos/github/slimphp/Slim/badge.svg?branch=4.x)](https://coveralls.io/github/slimphp/Slim?branch=4.x)
[![Total Downloads](https://poser.pugx.org/slim/slim/downloads)](https://packagist.org/packages/slim/slim)
[![License](https://poser.pugx.org/slim/slim/license)](https://packagist.org/packages/slim/slim)

Slim is a PHP micro-framework that helps you quickly write simple yet powerful web applications and APIs.

## Installation

It's recommended that you use [Composer](https://getcomposer.org/) to install Slim.

```bash
composer require slim/slim
```

This will install Slim and all required dependencies. Slim requires PHP 7.4 or newer.

## Choose a PSR-7 Implementation & ServerRequest Creator

Before you can get up and running with Slim you will need to choose a PSR-7 implementation that best fits your application. A few notable ones:

- [Slim-Psr7](https://github.com/slimphp/Slim-Psr7) - This is the Slim Framework PSR-7 implementation
- [httpsoft/http-message](https://github.com/httpsoft/http-message) & [httpsoft/http-server-request](https://github.com/httpsoft/http-server-request) - This is the fastest, strictest and most lightweight implementation available
- [Nyholm/psr7](https://github.com/Nyholm/psr7) & [Nyholm/psr7-server](https://github.com/Nyholm/psr7-server) - Performance is almost the same as the HttpSoft implementation
- [Guzzle/psr7](https://github.com/guzzle/psr7) - This is the implementation used by the Guzzle Client, featuring extra functionality for stream and file handling
- [laminas-diactoros](https://github.com/laminas/laminas-diactoros) - This is the Laminas (Zend) PSR-7 implementation

## Slim-Http Decorators

[Slim-Http](https://github.com/slimphp/Slim-Http) is a set of decorators for any PSR-7 implementation that we recommend is used with Slim Framework.
To install the Slim-Http library simply run the following command:

```bash
composer require slim/http
```

The `ServerRequest` and `Response` object decorators are automatically detected and applied by the internal factories. If you have installed Slim-Http and wish to turn off automatic object decoration then you can use the following statements:

```php
<?php

use Slim\Factory\AppFactory;
use Slim\Factory\ServerRequestCreatorFactory;

AppFactory::setSlimHttpDecoratorsAutomaticDetection(false);
ServerRequestCreatorFactory::setSlimHttpDecoratorsAutomaticDetection(false);

$app = AppFactory::create();

// ...
```

## Hello World using AppFactory with PSR-7 auto-detection

In order for auto-detection to work and enable you to use `AppFactory::create()` and `App::run()` without having to manually create a `ServerRequest` you need to install one of the following implementations:

- [Slim-Psr7](https://github.com/slimphp/Slim-Psr7) - Install using `composer require slim/psr7`
- [httpsoft/http-message](https://github.com/httpsoft/http-message) & [httpsoft/http-server-request](https://github.com/httpsoft/http-server-request) - Install using:
  `composer require httpsoft/http-message httpsoft/http-server-request`
- [Nyholm/psr7](https://github.com/Nyholm/psr7) & [Nyholm/psr7-server](https://github.com/Nyholm/psr7-server) - Install using `composer require nyholm/psr7 nyholm/psr7-server`
- [Guzzle/psr7](https://github.com/guzzle/psr7) - Install using `composer require guzzlehttp/psr7`
- [laminas-diactoros](https://github.com/laminas/laminas-diactoros) - Install using `composer require laminas/laminas-diactoros`

Then create file *public/index.php*.

```php
<?php
use Psr\Http\Message\ResponseInterface as Response;
use Psr\Http\Message\ServerRequestInterface as Request;
use Slim\Factory\AppFactory;

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

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

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

// Add routes
$app->get('/', function (Request $request, Response $response) {
    $response->getBody()->write('<a href="/hello/world">Try /hello/world</a>');
    return $response;
});

$app->get('/hello/{name}', function (Request $request, Response $response, $args) {
    $name = $args['name'];
    $response->getBody()->write("Hello, $name");
    return $response;
});

$app->run();
```

You may quickly test this using the built-in PHP server:

```bash
php -S localhost:8000 -t public
```

Going to [http://localhost:8000/hello/world](http://localhost:8000/hello/world) will now display "Hello, world".

For more information on how to configure your web server, see the [Documentation](https://www.slimframework.com/docs/v4/start/web-servers.html).

## Tests

To execute the test suite, you'll need to install all development dependencies.

```bash
git clone https://github.com/slimphp/Slim
composer install
composer test
```

## Contributing

Please see [CONTRIBUTING](CONTRIBUTING.md) for details.

## Learn More

Learn more at these links:

- [Website](https://www.slimframework.com)
- [Documentation](https://www.slimframework.com/docs/v4/start/installation.html)
- [Slack](https://slimphp.slack.com)
- [Support Forum](https://discourse.slimframework.com)
- [Twitter](https://twitter.com/slimphp)
- [Resources](https://github.com/xssc/awesome-slim)

## Security

If you discover security related issues, please email [security@slimframework.com](mailto:security@slimframework.com) instead of using the issue tracker.

## For enterprise

Available as part of the Tidelift Subscription.

The maintainers of `Slim` and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source dependencies you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use. [Learn more.](https://tidelift.com/subscription/pkg/packagist-slim-slim?utm_source=packagist-slim-slim&utm_medium=referral&utm_campaign=enterprise&utm_term=repo)

## Contributors

### Code Contributors

This project exists thanks to all the people who contribute. [Contribute](CONTRIBUTING.md).

### Financial Contributors

Become a financial contributor and help us sustain our community. [Contribute](https://opencollective.com/slimphp/contribute)

### Individuals

### Organizations

Support this project with your organization. Your logo will show up here with a link to your website. [Contribute](https://opencollective.com/slimphp/contribute)

## License

The Slim Framework is licensed under the MIT license. See [License File](LICENSE.md) for more information.