iassasin / easyroute
Very lightweight and simple router for PHP
Requires
- php: >=7.0
- psr/container: ^1.0
Requires (Dev)
- phpunit/phpunit: ^6
- satooshi/php-coveralls: ^2.0
README
Simple router do not require a lot of setups, install in few minutes and just works.
Installation
To start using router complete 4 simple steps:
- Install
easyroute
via composer:
composer require iassasin/easyroute
- Setup yours routes in root directory of project. For example in file
routes.php
:
require_once 'vendor/autoload.php'; use Iassasin\Easyroute\Router; use Iassasin\Easyroute\Route; $router = new Router(); $router->setControllersPath($_SERVER['DOCUMENT_ROOT'].'/controllers/'); $router->addRoutes([ new Route('/(:controller:(/:action:(/:arg)?)?)?', ['controller' => 'home', 'action' => 'index', 'arg' => null]), ]); $router->processRoute();
- Tell web server redirect all requests (except static
assets/
) to router via.htaccess
:
RewriteEngine On
RewriteCond %{REQUEST_URI} !^/assets/
RewriteRule ^(.*)$ routes.php [B,QSA,L]
- Create first controller in
controllers/home.php
:
class ControllerHome { public function index($arg){ return '<html><body>Home page! '.($arg !== null ? 'Argument: '.$arg : 'Argument not set').'</body></html>'; // or use "return new Response('...')" which is more flexible } }
That's it!
Note that file name must match :controller
name from URL template and controller class name must match :controller
name with prefix Controller
. In example above route /home/index
matches file controllers/home.php
and class ControllerHome
.
Useful features
Route with parameters
Route is a regex string with simpler syntax for naming route arguments. For example:
/:controller/:action/:arg
(all parameters are required)/(foo|bar)-:arg/gotcha
(regex and partial parameter matching. Valid are/foo-123/gotcha
,/bar-qwerty/gotcha
, but not/qwerty/gotcha
)/:arg?
(parameterarg
can be ommited, but not/
. Valid are/
,/param
, but not/sub/param
)/(:controller:(/:action:(/:arg)?)?)?
(all parameters not required. Valid are/
,/home
,/home/index/val
, but not/home/
,/home/index/
)
Parameter name must match regex [a-zA-Z_0-9]+
.
By default :parameter
match regex [^\/]+
, but you can use your own filter:
new Route('/:arg(\d+)?', // arg not required and can contains only numerics ['controller' => 'home', 'action' => 'index', 'arg' => null], // default values )
If you need to use (
to match group, but not to filter parameter, use trailing :
in parameter name: /:controller:(postfix1|postfix2)
will match /homepostfix1
with controller = 'home'
.
Built-in simple dependency injection container
You can use built-in dependency injection container to split app code into services (which will be loaded via autoload) and simply use it in controller's actions:
class ControllerHome { public function index($arg, Request $request, DatabaseService $db){ // ... } }
Services constructors can use dependency injection too and require another services via same syntax.
Class SampleContainer
impletents Psr\Container\ContainerInterface
.
use Iassasin\Easyroute\Router; $router = new Router(); /** @var SimpleContainer $container */ $container = $router->getContainer(); // get default container // Instantiate and add services by hand $container->setService(Database::class, new Database('login', 'password')); // Disable automatic instantiation for services $container->setAutowireEnabled(false);
Also you can use another dependency injection container:
use Iassasin\Easyroute\Router; use Iassasin\Easyroute\Http\Request; $router = new Router(); $request = Request::createFromGlobals(); // some implementation of ContainerInterface $container = new MyContainer(); // Router don't know how to register Request class in your container implementation // You should to do it by self if you want to use Request class in controllers // See next section for details of Request class $container->register(Request::class, $request); $router->setContainer($container);
Request class
Using dependency injection container you have access to Request
service that provides access to request parameters.
Request
has fields listed below:
query
-$_GET
arrayrequest
-$_POST
arrayattributes
- assoc array with any data, which you can set atRequest
instance creationcookies
-$_COOKIE
arrayfiles
-$_FILES
arrayserver
-$_SERVER
array
Each field is instance of Parameters
class and has methods:
get(string $name)
- get parameter by it's namehas(string $name)
- does parameter with$name
existsall()
- get all parameters in array
Request
provide some useful methods:
getContent()
- get whole http post content as stringgetClientIP()
- returns$this->server->get('REMOTE_ADDR')
getScriptName()
- returns$this->server->get('SCRIPT_NAME')
getScheme()
- returns$this->server->get('REQUEST_SCHEME')
getHost()
- returns$this->server->get('SERVER_NAME')
getUri()
- returns$this->server->get('REQUEST_URI')
getMethod()
- returns$this->server->get('REQUEST_METHOD')
getProtocol()
- returns$this->server->get('SERVER_PROTOCOL')
Response class
Response
class used to return data to client. Return Response
instances from controller's actions instead of manual data send using echo or etc.
Built-in response classes
There is 3 built-in response classes:
Response
- base class for all responses, has methods:__construct(string $content, int $statusCode = 200, array $headers = [])
getStatusCode()
,setStatusCode(int $code)
- get/set http status codegetContent()
,setContent(string $content)
- get/set http response contentgetHeaders()
,setHeaders(array $headers)
- get/set http headerssetHeader(string $name, string $value)
- set single headersend()
- send response to client, called from handlers
Response404
- extendsRequest
for default http 404 error with:__construct(string $url, array $headers = [])
getUrl()
- get URL caused 404 error
Response500
- extendsRequest
for default http 500 error. Generated if any exception thrown during route processing.__construct(\Throwable $exception = null, array $headers = [])
getException()
- get exception thrown during route processing
ResponseJson
- extendsRequest
for sending json responses, also set correct httpContent-Type
header.__construct(object|array $data, int $statusCode = 200, array $headers = [])
getData()
,setData(object|array $data)
- set source data to send to client- Note that
setContent
can't be used and throwsLogicException
Custom handlers for response classes
Set custom handlers for Response
classes:
use Iassasin\Easyroute\Http\Responses\Response404; $router->setResponseHandler(Response404::class, function(Response404 $resp){ $resp->setContent('<html><body><h1>Custom 404 Not Found</h1> The requested url "<i>'.htmlspecialchars($resp->getUrl()).'</i>" not found!'); $resp->send(); return true; // do not call other handlers });
And custom handlers for any http status code:
use Iassasin\Easyroute\Http\Response; $router->setStatusHandler(302, function(Response $resp){ $resp->setContent('You have redirected'); $resp->send(); return true; // do not call other handlers });
Note 1: you can use both handlers set, but response handlers will be called first (and can stop calling status handlers).
Note 2: you can set handler for parent response class to match all childs, child handlers will be always called first: from most child to first parent. So, you can match all responses setting handler for
Response::class
.
Subdirectories for controllers
Separate zones with subdirectories:
(new Route('/admin/:controller/:action?', ['action' => 'index'])) ->setControllersSubpath('zones/admin') // '/admin/home/index' will match 'controllers/zones/admin/home.php' // and class 'ControllerHome'
Filtering access
Use RouteFilter
to prevent access to some routes:
use Iassasin\Easyroute\RouteFilter; class RouteFilterAdmin extends RouteFilter { public function preRoute($path, $controller, $action, $args){ if (!isCurrentUserAdmin()){ (new Response('Access denied!', 403))->send(); return Router::COMPLETED; // Do not call controller's action } return Router::CONTINUE; // Call controller's action } } //... (new Route('/admin/:controller/:action?', ['action' => 'index'])) ->setFilter(new RouteFilterAdmin())
Custom controller class name prefix
Set custom controller class name prefix (default - Controller
):
$router->setControllerClassPrefix('TheController');