Per the discussions started earlier this year, I've opened two pull requests to "evolve" the PSR-11 ContainerInterface to use explicit type hints:
The first — https://github.com/php-fig/container/pull/27 — updates the psr/container package to require PHP 7.2, and adds the `string` typehint to the `$id` parameters of each of the `has()` and `get()` methods. The intention is for this to be tagged as v2.0, and would allow implementations: - Immediate forwards compatibility, as the covariance/contravariance rules of PHP 7.2 allow implementations to accept wider type ranges for parameters. - The ability to make themselves forwards compatible with a later release by adding return type hints, as this is be covered by the same covariance/contravariance rules (implementations can return a narrower set of types than their parent types). The second — https://github.com/php-fig/container/pull/28 — builds on the previous, and updates the psr/container package to add a return type of `bool` to the `ContainerInterface::has()` method. The intention is for this to be tagged as v3.0. These changes follow the specification verbatim, as the `$id` arguments are documented as strings. Further, I do not think this is a place where the proposed `Stringable` interface for PHP 8 comes into play; the context when pulling from a service container is generally to provide either a class name or a string service name; using a class to represent that is a sufficiently edge case that I see no good argument to wait for PHP 8 so we can do `string|Stringable` in this particular specification. Finally, I have not proposed a return typehint for `get()`, as the specification as written explicitly allows `mixed`. Not having a return type is the technically correct approach in this context. If there are no objections, I'd like to get these moved forward. Thanks! -- Matthew Weier O'Phinney mweierophin...@gmail.com https://mwop.net/ he/him -- You received this message because you are subscribed to the Google Groups "PHP Framework Interoperability Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to php-fig+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/php-fig/CAJp_myXXuHj2YOicMVV6W_U_4vacrc1UBLQXsvLTzLA1i3AH3w%40mail.gmail.com.
