Slim Framework - Using a GET route - rest

Question

I'm absolutely new to Slim Framework. I'm working on an Webservice that should provide an interface between an Android App and a Web-Application. I used the Slim Documentation to make my first steps and now I want to create a simple GET route, to receive information from the App. Here is what I have so far:
require 'Slim/Slim.php';
\Slim\Slim::registerAutoloader();
$name_outside = '';
$app = new \Slim\Slim();
$app->get('/session/program_name/:name', function ($name) use($app) {
$name_outside = $name;
echo $name;
});
$app->run();
echo $name_outside;
I need to access the variable :name outside the function, but what I get is nothing. What I am doing wrong here?
Btw: I know that GET-routes usually are used to list existing resources, but for my simple case, I decided to use it that way.

Answer 1

Fix your code to hold name as args parameters ,then you can get in in Your function
require 'Slim/Slim.php';
\Slim\Slim::registerAutoloader();
$name_outside = '';
$app = new \Slim\Slim();
$app->get('/session/program_name/{name}', function ($args) use($app) {
$name_outside = $args['name'];
echo $args['name'];
});
$app->run();

Answer 2

To acess the $name_outside inside the function context you pass it.
$app->get('/session/program_name/:name', function ($name) use($app, &$name_outside) {
$name_outside = $name;
echo $name;
});
But perhaps you're using Slim in a wrong way. Why you have to access the variable outside of your route?
No code is execyted after the run() call. That's the way slim works, try to put a die where you're echo the variable, it isn't reachable.
You shouldn't have the need to access the context of the route outside of it this way. To transform a request or a response you use middlewares with the hooks.