Slim PHP and GET Parameters

Question

I\'m playing with Slim PHP as a framework for a RESTful API, and so far it\'s great. Super easy to work with, but I do have one question I can\'t find the answer to. How do I gr

Answer 1

Probably obvious to most, but just in case, building on vip's answer concerning Slim 3, you can use something like the following to get the values for the parameters.

        $logger = $this->getService('logger');
        $params = $request->getQueryParams();
        if ($params)  {
            foreach ($params as $key => $param)     {
                if (is_array($param))   {
                    foreach ($param as $value)  {
                        $logger->info("param[" . $key . "] = " . $value);
                    }
                }
                else    {
                    $logger->info("param[" . $key . "] = " . $param);
                }
            }
        }

Answer 2

You can do this very easily within the Slim framework, you can use:

$paramValue = $app->request()->params('paramName');

$app here is a Slim instance.

Or if you want to be more specific

//GET parameter

$paramValue = $app->request()->get('paramName');

//POST parameter

$paramValue = $app->request()->post('paramName');

You would use it like so in a specific route

$app->get('/route',  function () use ($app) {
          $paramValue = $app->request()->params('paramName');
});

You can read the documentation on the request object http://docs.slimframework.com/request/variables/

As of Slim v3:

$app->get('/route', function ($request, $response, $args) {
    $paramValue = $request->params(''); // equal to $_REQUEST
    $paramValue = $request->post(''); // equal to $_POST
    $paramValue = $request->get(''); // equal to $_GET

    // ...

    return $response;
});

Answer 3

I fixed my api to receive a json body OR url parameter like this.

$data = json_decode($request->getBody()) ?: $request->params();

This might not suit everyone but it worked for me.

Answer 4

For Slim 3/4 you need to use the method getQueryParams() on the PSR 7 Request object.

Citing Slim 3 / Slim 4 documentation:

You can get the query parameters as an associative array on the Request object using getQueryParams().

Answer 5

Not sure much about Slim PHP, but if you want to access the parameters from a URL then you should use the:

$_SERVER['QUERY_STRING']

You'll find a bunch of blog posts on Google to solve this. You can also use the PHP function parse_url.

Answer 6

In Slim 3.0 the following also works:

routes.php

require_once 'user.php';

$app->get('/user/create', '\UserController:create');

user.php

class UserController
{
    public function create($request, $response, array $args)
    {
        $username = $request->getParam('username'));
        $password = $request->getParam('password'));
        // ...
    }
}