Re: [PHP-DEV] Nullable cast (?int)
On 02.08.2018 at 03:02, David Rodrigues wrote: > Can someone give me permission to publish the RFC? > My username is: david.proweb I've granted you RFC karma. -- Christoph M. Becker -- PHP Internals - PHP Runtime Development Mailing List To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP-DEV] Nullable cast (?int)
Can someone give me permission to publish the RFC? My username is: david.proweb Thanks! Em ter, 31 de jul de 2018 às 23:00, Marcos Passos < marcospassos@gmail.com> escreveu: > Pretty nice idea! > > On Tue, Jul 31, 2018 at 22:06 Gabriel Caruso > wrote: > >> > >> > Thanks a lot! >> > >> > 1. I never did a RFC and have no karma to do, so if someone wants to >> help >> > me with that, I appreciate (contact me directly, then we could publish >> RPC >> > link as reply here). >> > >> >> >> Someone can give you acess to https://wiki.php.net/rfc to you email, so >> you'll be able to write the RFC, no karma need for that. >> >> >> > >> > 2. Too, I could not implementate it, and I don't know if it is a >> > requirement to write a RFC or if it could be done in another moment. >> > >> > 3. What PHP version it should be focused? 7.4, right? >> > >> >> Yes, all new features now should target PHP 7.4. Just write the RFC and >> open the PR at https://github.com/php/php-src and let the process >> rollout. >> >> Regards, >> -- >> Gabriel Caruso >> > -- David Rodrigues
Re: [PHP-DEV] Nullable cast (?int)
Pretty nice idea! On Tue, Jul 31, 2018 at 22:06 Gabriel Caruso wrote: > > > > Thanks a lot! > > > > 1. I never did a RFC and have no karma to do, so if someone wants to help > > me with that, I appreciate (contact me directly, then we could publish > RPC > > link as reply here). > > > > > Someone can give you acess to https://wiki.php.net/rfc to you email, so > you'll be able to write the RFC, no karma need for that. > > > > > > 2. Too, I could not implementate it, and I don't know if it is a > > requirement to write a RFC or if it could be done in another moment. > > > > 3. What PHP version it should be focused? 7.4, right? > > > > Yes, all new features now should target PHP 7.4. Just write the RFC and > open the PR at https://github.com/php/php-src and let the process rollout. > > Regards, > -- > Gabriel Caruso >
Re: [PHP-DEV] Nullable cast (?int)
> > Thanks a lot! > > 1. I never did a RFC and have no karma to do, so if someone wants to help > me with that, I appreciate (contact me directly, then we could publish RPC > link as reply here). > Someone can give you acess to https://wiki.php.net/rfc to you email, so you'll be able to write the RFC, no karma need for that. > > 2. Too, I could not implementate it, and I don't know if it is a > requirement to write a RFC or if it could be done in another moment. > > 3. What PHP version it should be focused? 7.4, right? > Yes, all new features now should target PHP 7.4. Just write the RFC and open the PR at https://github.com/php/php-src and let the process rollout. Regards, -- Gabriel Caruso
Re: [PHP-DEV] Nullable cast (?int)
Thanks a lot! 1. I never did a RFC and have no karma to do, so if someone wants to help me with that, I appreciate (contact me directly, then we could publish RPC link as reply here). 2. Too, I could not implementate it, and I don't know if it is a requirement to write a RFC or if it could be done in another moment. 3. What PHP version it should be focused? 7.4, right? Em ter, 31 de jul de 2018 às 16:50, Claude Pache escreveu: > > > > Le 31 juil. 2018 à 21:07, Sara Golemon a écrit : > > > >> On Tue, Jul 31, 2018 at 2:23 PM, David Rodrigues < > david.pro...@gmail.com> wrote: > >> Currently we have support to (int) cast (and similar). But I do think > that > >> we too need a possibility to do a nullable cast. In terms, it will cast > to > >> (int) only if value is not null, else it should be kept as null. > >> > > I like this proposal. Short, simple, and consistent with other parts > > of PHP syntax. Write up an RFC for it? > > > > -Sara > > > > And, please, also consider `settype($x, '?int')`. > > I have userland functions in my code for those type of casts. > > —Claude > > -- David Rodrigues
Re: [PHP-DEV] Nullable cast (?int)
> Le 31 juil. 2018 à 21:07, Sara Golemon a écrit : > >> On Tue, Jul 31, 2018 at 2:23 PM, David Rodrigues >> wrote: >> Currently we have support to (int) cast (and similar). But I do think that >> we too need a possibility to do a nullable cast. In terms, it will cast to >> (int) only if value is not null, else it should be kept as null. >> > I like this proposal. Short, simple, and consistent with other parts > of PHP syntax. Write up an RFC for it? > > -Sara > And, please, also consider `settype($x, '?int')`. I have userland functions in my code for those type of casts. —Claude -- PHP Internals - PHP Runtime Development Mailing List To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP-DEV] Nullable cast (?int)
On Tue, Jul 31, 2018 at 2:23 PM, David Rodrigues wrote: > Currently we have support to (int) cast (and similar). But I do think that > we too need a possibility to do a nullable cast. In terms, it will cast to > (int) only if value is not null, else it should be kept as null. > I like this proposal. Short, simple, and consistent with other parts of PHP syntax. Write up an RFC for it? -Sara -- PHP Internals - PHP Runtime Development Mailing List To unsubscribe, visit: http://www.php.net/unsub.php
[PHP-DEV] Nullable cast (?int)
Currently we have support to (int) cast (and similar). But I do think that
we too need a possibility to do a nullable cast. In terms, it will cast to
(int) only if value is not null, else it should be keeped as null.
$number = 123;
(int) $number => 123;
(?int) $number => 123;
$string = '123';
(int) $string => 123;
(?int) $string => 123;
$null = null;
(int) $null => 0
(?int) $null => null
The last example is the biggest problem, because it transforms (int) null
to 0, (bool) null to false, (string) null to '', (array) null to []. It
could be an incorrect behavior when your parameter requires an ?int, where
an int will have a different behavior than null.
Example:
function increase(?int $number): ?int {
if ($number === null) { return null; }
return $number + 1;
}
increase($_POST['number']); // Could causes increase() first argument
should be ?int.
increase((int) $_POST['number']); // Will works, but will be always int,
and if $_POST['number'] is null, then it will fails because will be
converted to 0 erroneous.
increase((?int) $_POST['number']); // Will works if is an int, string or
null, respecting the expected behavior.
--
David Rodrigues
