README

The PHPico Router is probably the smallest fully featured PHP Router for web applications ever built.

It's intended for use with light applications. Even for embbeded uses like Raspberrypi.

Disclaimer: This class could be very useful for absolute noobs. You could learn A LOT just seeing this library code. Model View Controller is totally encouraged and is piece of cake if you know how to use this router. I promise, just one class, just a few lines (Less than 100).

Features

• Very light
• Intended to be fast
• Manage GET, POST... types for your request
• REGEXP based
• Configuration as array
• Callbacks allowed

Example code

The next example shows what you can do with this router.

<?php
include('../vendor/autoload.php');

class HomeController{
    function index(){
        return 'Hello people';
    }
    
    function greet($a){
        return 'Hello '.$a;
    }
}

$routes = [
    '\/greet\/(.*)' => ['POST', function(){
        return "Oh yeah callbacks :D";
    }],
    '\/greet\/(.*)' => ['GET', 'HomeController@greet'],
    '\/' => 'HomeController'
];

$router = new \PHPico\Router();
echo($router->dispatch($routes));

Regular Expressions

You can use PCRE. The only rule is that any REGEXP is launched as if it has /^.......$/ so you don't need to add the first/end delimiter and the first/end slashes.

The basic route

There are multiple ways to create a route. But the basic one is this:

<?php
$routes = [
    '\/' => 'HomeController'
];

HomeController is an example class in the main namespace. You should add the namespaces if there are any. If you have newer PHP versions you could use php HomeController::class

The callback route

You can use any callable to be used as destination. For example this anonymous function:

<?php
$routes = [
    '\/greet\/(.*)' => function($a){
        return "Hello ".$a;
    },
];

As you can see you can add params in order to get the capture of the REGEXP. (.*) Means capture any character, zero or more times. Then just add the $a var to recover this capture.

HTTP Request type segmentation

By default any route unless specified will allow any type of request. But you can segment the route for one or more specific requests. For example:

<?php
$routes = [
    '\/' => ['POST','HomeController']
];

This means that any request to the / path will return false unless you make a POST request.

You can even add more than one option, like:

<?php
$routes = [
    '\/' => ['GET', 'POST','HomeController']
];

Handling 404

The router component will return false if the route is not found. Simple and effective.

<?php
if($router->dispatch($routes) === false){
    header("HTTP/1.0 404 Not Found");
    die('Not found');
}

Have any idea on how to improve?

If you have any idea of how to improve this library you're welcome to submit a pull request with your improvement or fix. Remember that the idea is to keep the codebase the smallest possible.