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Date: Mon, 8 Aug 2016 17:15:51 +0200
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To: Rowan Collins <rowan.collins@gmail.com>
Cc: PHP Internals List <internals@lists.php.net>
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Subject: Re: [PHP-DEV] Function auto-loading
From: michal@brzuchalski.com (=?UTF-8?Q?Micha=C5=82_Brzuchalski?=)

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IMHO if there were possibility to provide scalar objects like in Nikic
extension
https://nikic.github.io/2014/03/14/Methods-on-primitive-types-in-PHP.html
most of str* and many other functions could be called wythout FQN simply
from variable. Most of global scope functions interacting with scalars
could be called throught object handlers. In many legacy applications there
still could be possibility to call global functions. Most of legacy
applications have no namespace (Wordpress) so there is even no need for FQN
for function calls.

2016-08-08 16:56 GMT+02:00 Rowan Collins <rowan.collins@gmail.com>:

> On 08/08/2016 15:36, Levi Morrison wrote:
>
>> I feel like the problem here did not get across properly. Calling the
>>> autoloader if a global function with the name exists will totally kill
>>> performance. This means that every call to strpos() or any of the other
>>> functions in the PHP standard library will have to go through the
>>> autoloader first, unless people use fully qualified names (which,
>>> currently, they don't). This is completely out of the question.
>>>
>>>
>> Interesting. I come to a different conclusion: this a great opportunity =
to
>> get developers to use the fully qualified names. Performance is an
>> incredibly motivating force even in many situations when it shouldn't be=
.
>>
>
> An example just to focus the mind:
>
> namespace Lovely\New\Code;
>
> class Blah {
>     function __construct(array $foo) {
>          foreach ( $foo as $item ) {
>               if ( strpos('blah', $item) !=3D=3D 0 ) {
>                   // ...
>               }
>          }
>      }
> }
>
>
> This will *repeatedly* call the function autoloader for
> "Lovely\New\Code\strpos". The fully qualified name in this case is
> "\strpos".
>
> I think saying "add a backslash in front of your function names to avoid
> them being slow" will just lead to lots of "lol wtf php sux".
>
> If we wanted to make the \ mandatory, then the name resolution for
> functions could have had no fallback, just like class names. The reasons
> for having that fallback presumably still apply, so it doesn't make sense
> to now declare it "broken by design, please avoid".
>
> On the other hand, saying "you can autoload functions from another
> namespace using qualified names or 'use function'" sidesteps the fallback
> issue, and sounds like a reasonable, non-BC-breaking, feature.
>
>
> Regards,
> --
> Rowan Collins
> [IMSoP]
>
> --
> PHP Internals - PHP Runtime Development Mailing List
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>
>


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pozdrawiam
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Micha=C5=82 Brzuchalski

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