Slim RuntimeException when extending a controller class

Question

The error is:

Fatal error: Uncaught exception 'RuntimeException' with message 'Unexpected data in output buffer. Maybe you have characters before an opening

I have built a pretty simple controller class to handle the routing and rendering of an MVC I am working on. I register all the controllers in the container and setup the routes calling them like 'className:methodName' which is working. Each controller though needed a constructor to set the container so that I could render php view. This seemed like a good thing to dry up so I made an abstract class

abstract class Controller {
    public $container;

    function __constructor($container = null){
         $this->container = $container;
    }
}

Literally changes nothing just a layer of abstraction but this is when the above mentioned error occurs.

Which I can fix by adding the following setting:

addContentLengthHeader = false

Which is great because I can still work but I am not sure A) Why is the content length set is this some added security or something? and B) Why is this abstraction causing this to happen should I be doing something different?

This error is presented when you have whitespace or other characters before or after the class declaration. Please check your source files for whitespace before the opening PHP tag — geggleto, Aug 19 '16 at 15:11
@geggleto do not recommend using what exactly? The end tags? — nerdlyist, Aug 19 '16 at 15:19

score 1 · Accepted Answer · answered Aug 22 '16 at 14:51

1

This error is presented when you have whitespace or other characters before or after the class declaration. Please check your source files for whitespace before the opening PHP tag

answered Aug 22 '16 at 14:51

geggleto

2,605
1
15
18

Slim RuntimeException when extending a controller class

1 Answers1