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# The Router Documentation

Installation

Add the latest version of the-router project running this command.

composer require focus237/the-router

Features

• Basic routing (GET, POST, RESOURCE).
• Regular Expression Constraints for parameters.
• Named routes.
• Generating url to routes.
• Namespaces.
• Optional parameters
• Sub-domain routing
• Custom boot managers to rewrite urls to "nicer" ones.
• Input manager; easily manage GET, POST.

Server Setup

Setting up Apache

Nothing special is required for Apache to work. We've include the .htaccess file in the root folder. If rewriting is not working for you, please check that the mod_rewrite module (htaccess support) is enabled in the Apache configuration.

.htaccess example

Below is an example of an working .htaccess file used by the-router.

Simply create a new .htaccess file in your root directory and paste the contents below in your newly created file. This will redirect all requests to your index.php file. According your index.php is in public folder, you'll write something like this

Setting up Ngninx

If you are using Nginx please make sure that url-rewriting is enabled.

You can easily enable url-rewriting by adding the following configuration for the Nginx configuration-file for the demo-project.

Configuration

Create a new file, name it routes.php and place it in your library folder. This will be the file where you define all the routes for your project.

WARNING: NEVER PLACE YOUR ROUTES.PHP IN YOUR PUBLIC FOLDER!

In your index.php require your newly-created routes.php and call the $router->run() method. This will trigger and do the actual routing of the requests.

It's not required, but you can set TheRouter::setDefaultNamespace('\Controllers\Path'); to prefix all routes with the namespace to your controllers. This will simplify things a bit, as you won't have to specify the namespace for your controllers on each route. The default namespace for controllers is App\Controller .

This is an example of a basic index.php file:

<?php

use TheRouter\Router\Router;

$router = new Router();

/* Load external routes file */
require_once 'routes.php';

/**
* The default namespace for route-callbacks, so we don't have to specify it each time.
* Can be overwritten by using the namespace config option on your routes.
*/
TheRouter::setDefaultNamespace('App\Controller');

/* Start the routing */
$router->run();

Routes

Remember the routes.php file you required in your index.php? This file be where you place all your custom rules for routing.

Basic Routing

Below is a very basic example of setting up a route. First parameter is the url which the route should match - next parameter is a Closure or callback function that will be triggered once the route matches.

$router->get('/', function() {
    return 'Hello world';
});

or you can call controller action by using ControllerName@Function :

$router->get('/', 'DefaultController@index');

Available methods

Here you can see a list over all available routes:

$router->get($url, $callback, $name);
$router->post($url, $callback, $name);
$router->resource($name, $controller);

$name is the route name. See named routes section for more informations.

Routes parameters

You'll properly wondering by know how you parse parameters from your urls. For example, you might want to capture the users id from an url. You can do so by defining route-parameters.

$router->get('/user/:id', function ($id) {
    return 'User with id : ' . $id;
});

You may define as many route parameters as required by your route:

$router->get('/posts/:post/comments/:comment', function ($post, $comment) {
    // ...
});

Regular expression constraints

You may constrain the format of your route parameters using the where method on a route instance. The where method accepts the name of the parameter and a regular expression defining how the parameter should be constrained:

$router->get('/user/:name', function ($name) {

    // ... do stuff

})->where('name', '[A-Za-z]+');

$router->get('/user/:id', function ($id) {

    // ... do stuff

})->where('id', '[0-9]+');

$router->get('/user/:id/:name', function ($id, $name) {

    // ... do stuff

})->where(['id' => '[0-9]+', 'name' => '[a-z]+']);

Named Routes

Named routes allow the convenient generation of URLs or redirects for specific routes. There is two ways for defining route name.

Chaining

You may specify a name for a route by chaining the name method onto the route definition (in this example, profile is the route name):

$router->get('/user/profile', function () {
    // Your code here...
})->name('profile');

Name parameter

You may specify a name for a route by adding it next to the callback of the route (in this example, profile is the route name):

$router->get('/user/profile', function () {
    // Your code here...
}, 'profile');

Generating URLs to named routes

Once you have assigned a name to a given route, you may use the route's name when generating URLs or redirects via the global $router->url('route_name') function:

// Generating URLs...
$url = $router->url('profile');

If the named route defines parameters, you may pass the parameters as the second argument to the url function. The given parameters will automatically be inserted into the URL in their correct positions:

$router->get('/user/:id/profile', function ($id) {
    //
})->name('profile');

$url = $router->url('profile', ['id' => 1]);