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Date: Thu, 3 Nov 2022 20:38:26 +0100
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Cc: PHP internals <internals@lists.php.net>
To: David Rodrigues <david.proweb@gmail.com>
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Subject: Re: [PHP-DEV] [RFC] Destructuring Coalesce
From: bobwei9@hotmail.com (Bob Weinand)

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Hey,

> Am 16.10.2022 um 23:56 schrieb David Rodrigues <david.proweb@gmail.com>:
> 
> I like it!
> 
> But what should happen if:
> 
> [ $a ?? '123', $b ] = [];

$a is assigned 123, $b emits undefined key error.

> [ $a ?? '123', $b ] = [ 1 ];

$a is assigned 1, $b emits undefined key error.

> [ $a ?? '123', $b ] = [ 1, 2 ];

$a is assigned 1, $b is assigned 2.

> It also supports ?: operator?
> 
> [ $a ?: '123' ] = []; so $a = '123'
> [ $a ?: '123' ] = [ false ]; so $a = '123'
> [ $a ?: '123' ] = [ 456 ]; so $a = 456

?: is out of scope of this RFC; a future RFC may want to take care of that.

Bob


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