GH Actions: enable test runs against PHP 8.3

[jrfnl]

Providing PRs #4887 and #5105 are committed first, this PR can go in without the need for a continue-on-error as the build will pass on PHP 8.3.

Trac ticket: https://core.trac.wordpress.org/ticket/59231

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[SergeyBiryukov]

Thanks for the PR!

With the prerequisite PRs both merged, it appears that the build still fails on Xdebug tests:

error: 'xdebug' does not exist

Apparently the Docker image for PHP 8.3 does not contain Xdebug yet, so we might need to disable those tests for now, like we did for PHP 8.2 in r53922.

[jrfnl]

Thanks for the PR!

With the prerequisite PRs both merged, it appears that the build still fails on Xdebug tests:

error: 'xdebug' does not exist

Apparently the Docker image for PHP 8.3 does not contain Xdebug yet, so we might need to disable those tests for now, like we did for PHP 8.2 in r53922.

Ah, yes, of course! Xdebug for PHP 8.3 is not yet available, we're ready for PHP 8.3 too early ... 🤪

I'm currently in a workshop. If you like, I'll have a look at this tonight and rebase the PR as well. Does that work for you ?

[SergeyBiryukov]

Ah, yes, of course! Xdebug for PHP 8.3 is not yet available

Thanks for the confirmation 🙂 I have added a conditional to skip Xdebug-related tests for the time being, and the build is passing now 🎉 Merged in r56498.

[jrfnl]

Thanks @SergeyBiryukov ! This means the base PHP 8.3 compatibility for WP Core is now done and WP Core can now be called "beta-compatible" (with the caveats of the three split off tickets with some known improvements to make, though those are not necessarily incompatibilities with PHP 8.3).

/cc @hellofromtonya