> Edmond Dantes <[email protected]> hat am 22.11.2025 13:01 CET geschrieben:
>
>
> Hello
>
> > function return types should not depend on the outside context (spawn,
> > hook, ini, etc.) because when the code gets more complex, it's very hard to
> > find the outside context.
>
> What does “outside context” mean?
>
> I just want to understand the practical use of functions with Promise.
> The code above makes sense only if there is awaitAll.
>
> $promise1 = file_get_content_async("file1.txt");
> $promise2 = file_get_content_async("file2.txt");
> $promise3 = file_get_content_async("file3.txt");
>
> awaitAll($promise1, ....);
>
> But you can achieve exactly the same effect without special functions.
> The only difference is that the _async function inside might be
> optimized in some way.
> Or is there something else?
>
> ---
> Ed
Hello,
basically in $result = foo(spawn(bar(baz(file_get_contents()))));
file_get_contents() receives outside context from spawn() to turn into async
mode. Also foo(), bar(), baz() can be in different namespaces, different
classes, so by looking at the code calling file_get_contents(), it's not clear
if the result is sync or async.
Another example:
$foo = file_get_contents('foo.txt');
$result = foo($foo);
should be equal to:
$result = foo(file_get_contents('foo.txt'));
but having:
$foo = file_get_contents('foo.txt'); // sync
$result = spawn($foo); // error because $foo is string
would not be eqaul to:
$result = spawn(file_get_contents('foo.txt')); // async
Best Regards
Thomas
