Route Parameters

Parameters can be defined on routes using the {keyName} syntax. When a route matches a contained parameter, an instance of the RouteParams object is passed to the action.

use Qubus\Routing\Route\RouteParams;

$router->map(['GET'], 'posts/{id}', function($id) {
    return $id;
});

If you need to add constraints to a parameter, you can pass a regular expression pattern to the where() method of the defined Route:

$router->map(['GET'], 'post/{id}/comment/{commentKey}', function ($id, $commentKey) {
    return $id;
})->where(['id', '[0-9]+'])->where(['commentKey', '[a-zA-Z]+']);

Optional route Parameters

Sometimes you may want to use optional route parameters. To achieve this, you can add a ? after the parameter name:

$router->map(['GET'], 'posts/{id?}', function($id) {
    if (isset($id)) {
        // Parameter is set.
    } else {
        // Parameter is not set.
    }
});