Initial commit

README.md

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+# Kavalanche/Router
+Simple routing library for web applications.
+
+# Usage
+
+1. Require kavalanche/security
+```bash
+    composer require kavalanche/security
+```
+
+2. Create `Router` instance.
+```php
+    $router = new \Kavalanche\Router\Router();
+```
+3. Add your routes.
+```php
+    $router->get('/', function() {
+        echo 'Start';
+    });
+
+    $router->get('/post(\d+)', function($id) {
+        echo 'Post ' . $id;
+    });
+
+    $router->get('/test/index', [Kavalanche\Router\TestController::class, 'index']);
+
+    $controller = new Kavalanche\Router\TestController();
+
+    $router->get('/test/post/(\d+)', [$controller, 'post']);
+```
+
+4. Invoke `dispatch` method.
+```php
+    $router->dispatch();
+```

composer.json

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+{
+    "name": "kavalanche/router",
+    "description": "Router component for web applications",
+    "type": "library",
+    "authors": [
+        {
+            "name": "Wojtek",
+            "email": "w.lk@wp.pl"
+        }
+    ],
+    "autoload": {
+        "psr-4": {
+            "Kavalanche\\Router\\": "src/"
+        }
+    },
+    "require": {
+
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^8.4"
+    }
+}

src/Route.php

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+<?php
+
+namespace Kavalanche\Router;
+
+/**
+ * @author wojtek
+ */
+class Route {
+
+    public $method;
+    public $path;
+    public $callback;
+
+}

src/Router.php

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+<?php
+
+namespace Kavalanche\Router;
+
+/**
+ * @author wojtek
+ */
+class Router {
+
+    private $allowedMethods = [
+        'get',
+        'post'
+    ];
+    private $routes = [];
+
+    public function request($method, $path, $callback) {
+        $route = new Route();
+        $route->method = $method;
+        $route->path = $path;
+        $route->callback = $callback;
+        $this->routes[] = $route;
+    }
+
+    public function get($path, $callback) {
+        return $this->request('get', $path, $callback);
+    }
+
+    public function post($path, $callback) {
+        return $this->request('post', $path, $callback);
+    }
+
+    public function dispatch() {
+        $requestMethod = strtolower($_SERVER['REQUEST_METHOD']);
+        $requestUri = parse_url($_SERVER['REQUEST_URI']);
+        foreach ($this->routes as $route) {
+            $path = str_replace('/', '\/', $route->path);
+            $path = '/^' . $path . '\/?$/';
+            if (in_array($requestMethod, $this->allowedMethods, true)) {
+                if ($requestMethod === $route->method) {
+                    if (preg_match($path, $requestUri['path'], $params) === 1) {
+                        array_shift($params);
+                        call_user_func_array($route->callback, $params);
+                        exit;
+                    }
+                }
+            }
+        }
+        http_response_code(404);
+        throw new Exception('Route not found!');
+        exit;
+    }
+
+}