Stdlib: Locale::getDisplayLanguage()/getDisplayRegion()/getKeywordValue() missing after #20738 (ext/intl/locale)

[PurHur]

Category

stdlib · php-src-strict · ext/intl Locale · pillar 4

Problem

After #6696 / #20036 / #20738, Locale has getDisplayName, canonicalize, parseLocale, composeLocale, getKeywords, lookup, acceptFromHttp, filterMatches, but the per-component display getters and keyword mutators from php-src are still missing.

Repro	Zend (intl)	VM PROFILE=8.4 (2026-07-19, 1510ad5a2)
method_exists('Locale','getDisplayName')	true	true (English (United States))
getDisplayLanguage / getDisplayRegion / getDisplayScript / getDisplayVariant	true	false
getAllVariants	true	false
getKeywordValue / setKeywordValue	true	false

php-src reference

• php/php-src ext/intl/locale/locale.stub.php — getDisplayLanguage, getDisplayRegion, getDisplayScript, getDisplayVariant, getAllVariants, getKeywordValue, setKeywordValue
• php/php-src ext/intl/locale/locale_methods.c — display/keyword handlers

PHP implementation target

• Extend ext/intl/VmLocale.php (+ method classes / locale_* procedural aliases as with Stdlib: Locale::canonicalize()/parseLocale()/composeLocale()/getKeywords() missing after #6696/#20036 (ext/intl/locale) #20738)
• PHP-in-PHP + existing ICU uloc_* FFI pattern; no new C runtime logic
• Compliance .phpt under test/compliance/cases/intl/

Repro

./script/docker-exec.sh -- bash -lc 'source script/php-env.sh && PHP_COMPILER_PROFILE=8.4 php bin/vm.php test/repro/issue_locale_display_methods.php'

Done when

• Locale::getDisplayLanguage('en_US','en') (and Region/Script/Variant) match Zend display strings
• getAllVariants / getKeywordValue / setKeywordValue present and php-src-shaped
• Procedural locale_get_display_* / locale_get_keyword_* aliases registered where php-src has them
• Compliance .phpt guard (VM+JIT)
• php-src-strict; no php-compiler-strict shortcut

[PurHur]

Inline repro (if test/repro/issue_*.php is not yet on your tree):

./script/docker-exec.sh -- bash -lc 'source script/php-env.sh && PHP_COMPILER_PROFILE=8.4 php bin/vm.php -r "
// see issue body table — paste the corresponding repro snippet
"'

Prefer the test/repro/ path from the issue once present on master; otherwise recreate from the Problem table.

[PurHur]

claim: PHP Compiler STD Lib Advanced — batch queued (#20729→#20730→#20753→#20754→#20755).

[PurHur]

handoff: advanced-stdlib intl batch this run merged #20729 (#20765), #20730 (#20767), #20754 (#20772); #20753 closed via concurrent #20766. Next candidate: Locale display/keyword methods (#20755).

[PurHur]

claim: PHP Compiler STD Lib Advanced — batch (#20755 → #20781 → #20780 → #20769 → #20756 → #20740)

#20771 already merged (#20783). Starting Locale display/keyword methods next.