Why init stream property in the constructor?

[k00ni]

In the Response class constructor, the stream property gets initialized:

$this->stream = ($body instanceof StreamInterface) ? $body : new Stream($body, 'wb+');

It has no explicit property definition, which means it is public, isn't it? But its usage is not specified in the ResponseInterface of the PSR-7.

My problem is, that the Response class creates files in my project folder. Their name is the same string which i used as $body before. I am wondering how to deal with it, because if i implement some specific code to deal with the stream afterwards it will most likely not be compatible with another PSR-7 implementation.

[Maks3w]

1. Attribute is public, is the way opted by this library for to preserve the inmutability without to create more methods or instances.
2. MessageInterface::getBody() force the object must return a StreamInterface. This could be lazy load or at constructor time.

[weierophinney]

$stream is in MessageTrait and defined as private: https://github.com/zendframework/zend-diactoros/blob/master/src/MessageTrait.php#L41-L44

My problem is, that the Response class creates files in my project folder.

The Response constructor indicates that you should be providing a stream, which can be one of the following:

• a PHP resource
• a StreamInterface implementation (such as Zend\Diactoros\Stream)

If you provide a string value, Response interprets this as a stream identifier to use to create a stream; in other words, it assumes it is a filesystem path. This is also documented. (See https://github.com/zendframework/zend-diactoros/blob/master/src/Response.php#L108)

If you are trying to pass a string value, your options are:

// Write to the stream after creating the response:
$response = new Response();
$response->getBody()->write($string);

// Create a stream first:
$stream = new Stream('php://temp');
$stream->write($string);
$response = new Response($stream);

Or wait until 1.1.0, when #52 is added, and you can do this:

$response = StringResponse::html($html); // HTML contents
$response = StringResponse::json($data); //JSON contents

[weierophinney]

@Maks3w You're incorrect; the property is defined in MessageTrait.

[k00ni]

Thanks for the fast answers. I will look into it.