Regression: get_browser Reflection names browser_name — Zend user_agent; named args rejected (ext/standard/basic_functions.stub.php)

[PurHur]

Category

bug · php-src-strict · named arguments / Reflection

Problem

get_browser Reflection exposes browser_name instead of stub user_agent, so Zend named calls are rejected. Probed 2026-07-26 vs host Zend 8.2.32 (browscap may be unset — return value is not the defect).

Repro	Zend 8.2	VM (2026-07-26)
Reflection params	user_agent,return_array	browser_name,return_array
get_browser(user_agent: null, return_array: true)	binds (false / warning if no browscap)	Unknown named parameter $user_agent

php-src reference

• php/php-src ext/standard/basic_functions.stub.php — get_browser(?string $user_agent = null, bool $return_array = false): object|array|false
• php/php-src ext/standard/browscap.c — PHP_FUNCTION(get_browser)

PHP implementation target

• lib/BuiltinParamNames.php — get_browser → ['user_agent','return_array'] (today browser_name)
• Reflection + named-arg dispatch; PHP-in-PHP only; no new C

Repro

./script/docker-exec.sh -- bash -lc 'php bin/vm.php -r '\''$r=new ReflectionFunction("get_browser"); echo implode(",", array_map(fn($p)=>$p->getName(), $r->getParameters())), "\n"; try { var_export(get_browser(user_agent: null, return_array: true)); echo "\n"; } catch (Throwable $e) { echo $e->getMessage(), "\n"; }'\'''

Done when

• Reflection names are user_agent,return_array
• Zend-style named user_agent: call binds without Unknown named parameter on VM (and JIT when in scope)
• Compliance .phpt + test/repro/issue_NNNN_*.php
• php-src-strict; no php-compiler-strict shortcut

[PurHur]

claim: worker-lane-a — starting this run (language queue empty; lowest unclaimed lane-A IR)

[PurHur]

merged: #31580

Verification:

• ./script/docker-exec.sh -- bash -lc 'php bin/vm.php test/repro/issue_23382_get_browser_reflection.php' → user_agent,return_array / named bind / old browser_name → Error
• ./script/phpunit.sh --filter GetBrowserReflectionNamed23382 → OK (2 tests)