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Date: Tue, 15 Apr 2025 12:44:01 +0100
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Subject: Re: [PHP-DEV] Closure::getCurrent() for recursion
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From: imsop.php@rwec.co.uk ("Rowan Tommins [IMSoP]")

On 15/04/2025 11:49, Jorg Sowa wrote:
> I gave this example only to point out that this case should be 
> mentioned in the RFC to dispel doubts what's intended and eventually 
> put such test case into the PR.


Sure, but there was a mistake in your example - Closure::current(10) 
should be Closure::current()(10), i.e. "get the current closure, and 
then immediately invoke it, passing 10".

More readable if you put it in a local variable:


$a = function (int $numberA) {
     $b = function (int $numberB) {
         $selfReference = Closure::getCurrent();
         if($numberB < 10) {
             return $selfReference(10);
         }
         return $numberB;
     };
     return $b($numberA) + $numberA;
};

var_dump($a(4));


The local var $selfReference refers to the same Closure object as the 
outer var $b, because that's the closure that's "current" on the line 
where Closure::getCurrent() is called.

-- 
Rowan Tommins
[IMSoP]