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Date: Sat, 14 Oct 2023 13:54:59 +0200
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To: PHP internals <internals@lists.php.net>
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Subject: Re: [PHP-DEV] DOMXPath / XSLTProcessor function callbacks
From: dossche.niels@gmail.com (Niels Dossche)

Hi Tim

On 10/14/23 12:30, Tim Düsterhus wrote:
> Hi
> 
> On 10/13/23 00:39, Niels Dossche wrote:
>> Please let me know your thoughts.
> 
> What does calling ->registerPHPFunctions() do when it's called more than once? Will the existing allow-list be overwritten or amended?
> 
> i.e.
> 
> $xpath->registerPHPFunctions([
>   'strtoupper',
> ]);
> $xpath->registerPHPFunctions([
>   'ucfirst',
> ]);
> 
> will I be able to:
> 
> (a) Call ucfirst(), but not strtoupper()
> (b) Call both

You can call both, it's additive.

> 
> Best regards
> Tim Düsterhus

Cheers
Niels