How to install Slim Framework 3

Last updated on February 20, 2018

Slim is a PHP micro framework that helps you write simple web applications and APIs quickly. It comes with a sophisticated URL dispatcher and middleware architecture that makes it ideal for static websites or API prototyping. It supports all(GET, POST, PUT, DELETE) the HTTP methods. Slim requires PHP 5.5.0 or newer.

This tutorial shows how to install Slim Framework. The slim framework is extremely easy to setup, thanks to composer support.

Installation

This guide explains you downloading slim framework using composer.

# change into your projects directory
$ cd xampp\htdocs

# create project directory 
$ mkdir slimapp

#change into the App directory
$ cd slimapp

# install slim via composer
$ composer require slim/slim "^3.0"

Above issued composer command will install Slim and all required dependencies. Now, lets use the slim framework and say hello to the world.

Now just create index.php file containing:

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

$app->run();

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

$ php -S localhost:8000

Going to http://localhost:8000/hello/world will now display “Hello, world”.

Without using built-in php server,you can access application if your files are hosting in server, with
http://localhost/slim/index.php/hello/world.

If you want to remove index.php from the URL, then change the apache configurations with .htaccess. The .htaccess file should contain this code:

RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^ index.php [QSA,L]

Please ensure your .htaccess and index.php files are in the same public-accessible directory.

Make sure your Apache virtual host is configured with the AllowOverride option so that the .htaccess rewrite rules can be used – AllowOverride All