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PHP Introducing MVC Frameworks in PHP Building an MVC Project Map, Redirect and Named Routes

Posted by ROBERT RUBY II
ROBERT RUBY II
10,586 Points

Where is $this coming from? There is not object I see but $app?!

if( !empty($args['name']) && !empty($args['email']) && !empty($args['msg']) ) {
            $mail = json_encode([$args['name'], $args['email'], $args['msg']]);
            $container->get('logger')->notice($mail);
            // Get named route 'thankyou' from below
            $url = $this->router->pathFor('thankyou');
            //return $container->get('view')->render($response, 'thankyou.phtml', $args);
            return $response->withStatus(302)->withHeader('Location', $url );
        }

2 Answers

Jennifer Nordell
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STAFF
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Jennifer Nordell
Treehouse Teacher
Jennifer Nordell
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Jennifer Nordell
Treehouse Teacher

Hi there, ROBERT RUBY II ! If you go back to index.php inside your public folder you should find a line that looks like this:

$app = new \Slim\App($settings);

That creates a new instance of the Slim app and sends in some settings. Later on, in your routes.php file you will be using the ->get and ->post methods on that $app instance. Thus, $this refers to the instance of \Slim\App that you made way back when :smiley:

Hope this helps! :sparkles:

ROBERT RUBY II
ROBERT RUBY II
10,586 Points

Oh. Ok. lol I was very confused.

Dario Preglej
Dario Preglej
9,771 Points
Dario Preglej
Dario Preglej
9,771 Points

How $args['error'] become $error?

if (isset($error)) { echo "<div class='alert alert-danger' role='alert'>ERROR!!! $error</div>"; }

Jennifer Nordell
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.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher
Jennifer Nordell
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

Hi there, Dario Preglej! When you're rendering a template in Slim or "view", you can choose to send in data to that view in the form of an associative array. And you can send anything you like. Whatever you send in those $args will then become the name of a variable inside the view. So if I sent $args['student'] = 'Dario', then I would expect my view to see $student as a variable and the value as "Dario".

Hope this helps! :sparkles:

edited for additional information The name of the key becomes the name of the variable once it's in the view. It's part of the magic :smiley: