Installation

System Requirements

• PHP 7.2 or newer
• a web server with URL rewriting like Apache or NGINX

Application Requirements

• a PSR-7 compatible library

Step 1: Install Composer

Don’t have Composer? It’s easy to install by following the instructions on their download page.

Step 2: Install Peak

We recommend to install Peak via Composer:

$ composer require peak/framework

Step 3: Install a PSR-7 compatible library

In order to process an HTTP Request with a Peak Application, you will need to install a compatible with PSR-7. Here’s a quick list:

• guzzlehttp/psr7
• zendframework/zend-diactoros
• nyholm/psr7
• etc… (check here for all PSR-7 library implementation)

For the purpose of this documentation, we will use zend-diactoros:

$ composer require zendframework/zend-diactoros

Step 4: create your application entry point

<?php

use Peak\Backpack\Bedrock\HttpAppBuilder;
use Peak\Http\Response\Emitter;
use Psr\Http\Message\ServerRequestInterface as Request;
use Zend\Diactoros\Response\HtmlResponse;
use Zend\Diactoros\ServerRequestFactory;

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

$app = (new HttpAppBuilder())->build();

$app
    ->get('/hello/{name}', function (Request $request) {
        return new HtmlResponse('Hello ' . $request->args->name . '!', 200);
    })
    ->run(ServerRequestFactory::fromGlobals(), new Emitter());