[Bug] Activity return an associative array, but in workflow, the return value is parsed as an object about sdk-php HOT 3 CLOSED

Hi @SerafimArts,
Noted. Thanks for your explanation and suggestion.
I will update my code to use DTO suggested by @wolfy-j instead of using associative array.

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Hello!

It is worth noting that Temporal can communicate with external services that can be written in an arbitrary language. The default codec used is JSON, where there is no such thing as an associative array, as in most programming languages existing in the world.

Therefore, when packing such data into this format, the types are converted from an hash-map to an object:

['key' => 'value'] 
// ->
{"key": "value"}

Which is the representation of the anonymous object.

That is, in this case, this is not an bug, but rather a limitation of the transport protocol.

To solve this problem, you should convert the result explicitly back from anonymous object to PHP hash-map:

$assocArray = (array)(yield $simple->getAssocArray($input));

@wolfy-j perhaps can tell if switching to a different codec will help solve this problem. And if so, how to do it technically.

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I would strongly recommend using proper DTO for such purposes. You can create objects with public properties. Temporal should typecast it if this object is set as the return type of the activity.

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