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BitFrame PHP Microframework

A highly customizable PSR-15 / PSR-7 compatible middleware-based microframework for PHP that comes bundled with a simple PSR-11 based DI container for sharing services and data across the application. It is:

  1. Easy-to-learn and intuitive;
  2. Standards-based;
  3. Simple by design;
  4. Free of unnecessary bloat;
  5. Non-intrusive;
  6. Customizable, modular and easy-to-scale.


  1. PHP 8.2+;
  2. Server with URL Rewriting (such as Apache, Nginx, etc.).

How to Get Started?

You can get started in a few simple steps:

  1. Setup your environment;
  2. Install composer dependencies;
  3. Create your first "Hello World" app.

For a complete example, have a look at the simple dockerized boilerplate.

1. Setup Your Environment

You can refer to the following minimal Apache and Nginx configurations to get started:


Create an .htaccess file with at least the following code:

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

This sets the directive in Apache to redirect all Http requests to a front controller index.php file in which you can write your main application code.


A configuration like the following in Nginx will help you set the directive to rewrite path to your application front controller (i.e. index.php):

server {
  listen 80;

  root /var/www/html/public;
  index index.php;

  location / {
    try_files $uri $uri/ /index.php$is_args$args;

  location ~ \.php$ {
    fastcgi_split_path_info ^(.+\.php)(/.+)$;
    fastcgi_pass app:9000;
    fastcgi_index index.php;
    include fastcgi_params;
    fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
    fastcgi_param PATH_INFO $fastcgi_path_info;

  access_log /var/log/nginx/access.log;
  error_log  /var/log/nginx/error.log;

Remember to make changes according to your project setup. For example, ensure that listen, root, fastcgi_pass, *_log, etc. are setup correctly according to your project.

2. Install Composer Dependencies

You can use composer require like so:

$ composer require "designcise/bitframe":^4.0

Or, alternatively, you can add the package dependency in your composer.json file.

Please note that you must include a PSR-17 factory in your composer dependencies. nyholm/psr7 and guzzle/psr7 are good examples of these — if you include either of these, they're automatically picked up by BitFrame. For any other PSR-17 factory implementation, you can add it add via \BitFrame\Factory\HttpFactory::addFactory() method before you instantiate \BitFrame\App.

3. Create Your First "Hello World" App

If you have ever used a middleware based framework, you will feel at ease. A "Hello World" app would look something like the following:


require 'vendor/autoload.php';

use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Server\RequestHandlerInterface;
use BitFrame\App;
use BitFrame\Emitter\SapiEmitter;

// 1. Instantiate the App
$app = new App();

$middleware = function (ServerRequestInterface $request, RequestHandlerInterface $handler) {
    $response = $handler->handle($request);
    $response->getBody()->write('Hello World!');
    return $response;

// 2. Add middleware

// 3. Run the application

From the code above you can see that the application uses two middlewares:

  1. A PSR-15 middleware \BitFrame\Emitter\SapiEmitter (that comes bundled with BitFrame package) which allows to emit the HTTP Response to the requesting user-agent (such as a web browser);
  2. A closure middleware used to write Hello World! to the HTTP response stream.

This is of course a very basic example. In a real-world application, the setup would be much more complex than this. For example, you could extend the functionality by using an additional PSR-15 middleware such as a router, error handler, etc. For suggestions on how to go about designing your application (and to get started quickly), have a look at the simple dockerized boilerplate example.


To run the tests you can use the following commands:

Command Type
composer test PHPUnit tests
composer style CodeSniffer
composer style-fix CodeSniffer Fixer
composer md MessDetector
composer check PHPStan


Please see CONTRIBUTING for details.


Please see License File for licensing information.