Response->type vs response->withType

Need Help
1

When setting a response content-type header, what is the difference between

$response->type('content/joy');

and

$response->withType('content/joy');

Other than the fact that the former seems to work and the later does not?

I’m using CakePHP 3.5.x, and the only way I can control content type for responses is to use the first method. The second method does nothing.

2

The first one is keeped for backwards compatibility reasons, it will be deprecated in 3.6 and removed in 4.0

The second one is part of the PSR-7 interface, it was created to be inmutable. You should use it like this

$this->response = $response->withType('content/joy');
3

Why in Gawd’s name would they make the response object immutable? That would make sense for the request, but the entire point of the framework is that I have control over the response.

That should be revisited, as it’s a really bad idea.

1 Like
4

Its part of the PHP-FIG and not CakePHP alone.
This will allow the PHP ecosystem to grow in packages that can coexists without building bridges, every modern framework/library will use the inmutable request/response