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Date: Thu, 20 Mar 2025 15:14:55 +0100
To: "Edmond Dantes" <edmond.ht@gmail.com>,
 "Rowan Tommins [IMSoP]" <imsop.php@rwec.co.uk>
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Subject: Re: [PHP-DEV] PHP True Async RFC - Stage 2
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From: rob@bottled.codes ("Rob Landers")

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On Thu, Mar 20, 2025, at 12:01, Edmond Dantes wrote:
> ```php
> spawn fn() =3D> [file_get_content(), file_get_content(), file_get_cont=
ent()]
> ```

This example highlights one of the concerns I have with fibers and this =
approach in general. That example will still execute synchronously, taki=
ng file_get_contents() * 3, even though it is in a coroutine function.

If you wanted to make it asynchronous, you'd have to do something like s=
o:

$x =3D [spawn fn() =3D> file_get_contents($a), spawn fn() =3D> file_get_=
contents($b), spawn fn() =3D> file_get_contents($c)];

foreach($x as $i =3D> $spawn) $x[$i] =3D await $spawn;

That is quite a bit more work than I'd like just to get async file readi=
ng done.

=E2=80=94 Rob
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<!DOCTYPE html><html><head><title></title><style type=3D"text/css">p.Mso=
Normal,p.MsoNoSpacing{margin:0}</style></head><body><div><br></div><div>=
<br></div><div>On Thu, Mar 20, 2025, at 12:01, Edmond Dantes wrote:<br><=
/div><blockquote type=3D"cite" id=3D"qt" style=3D""><div dir=3D"ltr"><di=
v dir=3D"ltr"><div>```php<br></div><div><span style=3D"color:rgb(80, 0, =
80);">spawn fn() =3D&gt; [file_get_content(),&nbsp;</span><span style=3D=
"color:rgb(80, 0, 80);">file_get_content(),&nbsp;</span><span style=3D"c=
olor:rgb(80, 0, 80);">file_get_content()</span><span style=3D"color:rgb(=
80, 0, 80);">]</span><br></div><div>```<br></div></div></div></blockquot=
e><div><br></div><div>This example highlights one of the concerns I have=
 with fibers and this approach in general. That example will still execu=
te synchronously, taking file_get_contents() * 3, even though it is in a=
 coroutine function.<br></div><div><br></div><div>If you wanted to make =
it asynchronous, you'd have to do something like so:<br></div><div><br><=
/div><div>$x =3D [spawn fn() =3D&gt; file_get_contents($a), spawn fn() =3D=
&gt; file_get_contents($b), spawn fn() =3D&gt; file_get_contents($c)];<b=
r></div><div><br></div><div>foreach($x as $i =3D&gt; $spawn) $x[$i] =3D =
await $spawn;<br></div><div><br></div><div>That is quite a bit more work=
 than I'd like just to get async file reading done.</div><div><br></div>=
<div id=3D"sig121229152">=E2=80=94 Rob<br></div></body></html>
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