Update to `johnbillion/wp-compat` v3 (#370)

Account for optional keys in `get_flag_value()` return type (#368)

Install WordPress from roots/wordpress-full in Composer-based tests (#…

…365)

Co-authored-by: Claude Opus 5 <noreply@anthropic.com>

Make the PHP built-in web server step work without server-command (#363)

* Make the PHP built-in web server step work without server-command

`start_php_server()` always passed `{RUN_DIR}/vendor/wp-cli/server-command/router.php`
as the router script, but no built-in step puts wp-cli/server-command into
the run directory (`Given a WP installation with Composer` only requires
WordPress core). PHP then fails every request with a fatal error while
trying to open the router, and with `display_errors=On` that error page is
even served with a 200 status, so a scenario serving static files gets an
error page instead of its fixture and a missing file never yields a 404.

Only pass the router when it actually exists, looking in the run directory
first and then in the vendor directory of the project under test. Without a
router, PHP's built-in web server serves the directory as-is, which is what
a plain directory of files needs.

The `Then the HTTP status code should be` step relied on the Requests v1
class, which WP-CLI no longer autoloads, so it failed with a fatal error
before the request was made. Use whichever Requests version WP-CLI ships.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019g8sd6U4w59qiQW7LTt1jG

* Honor a custom Composer vendor-dir and assert the served response

Look up the server-command router in the vendor directory configured in
the run directory's composer.json, so that a WP installation with a custom
vendor directory is covered as well.

Extend the scenarios to check the response body and a real 404, so that
they fail against the old behavior of serving PHP's fatal-error page with
a 200 status. PHP's built-in web server falls back to index.html for
unknown paths when it exists, so the 404 case lives in its own scenario
without an index file.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019g8sd6U4w59qiQW7LTt1jG

* Avoid $argv in the feature file fixture

PHPStan flags `$argv` as possibly undefined in the PHP blocks of feature
files, so read the argument from `$_SERVER['argv']` instead.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019g8sd6U4w59qiQW7LTt1jG

* Use get_headers() in the feature file fixture

PHP 8.5 deprecates the `$http_response_header` variable, and the
deprecation notice on STDERR fails the `I run` step.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019g8sd6U4w59qiQW7LTt1jG

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Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>

Check the PHP blocks in feature files as the space-indented code they…

… are (#362)

Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
Co-authored-by: Claude <noreply@anthropic.com>

Update file(s) from wp-cli/.github

Add WP-Compat PHPStan extension configuration (#360)

Co-authored-by: Claude <noreply@anthropic.com>

PHPStan: Resolve GlobalConfig dynamically in WPCliGetConfigDynamicRet…

…urnTypeExtension (#347)

Update package requirements

Require WP-CLI v3