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Stdlib: hash_pbkdf2() — enum case password operand must TypeError (ext/hash/hash.c, php-src-strict) #9027
Description
Category
stdlib · php-src-strict
Problem
hash_pbkdf2() must TypeError when $password (argument #2) is an enum case. This compiler coerces silently and completes (ok on repro).
Distinct from #6488 (openssl_pbkdf2 API missing).
php-src reference
- php/php-src
ext/hash/hash.c—PHP_FUNCTION(hash_pbkdf2)(ZPP string password)
Repro
test/repro/maintainer_hash_pbkdf2_enum_typeerror.php:
<?php
declare(strict_types=1);
enum E: string { case A = 'secret'; }
try {
hash_pbkdf2('sha256', E::A, 'salt', 1000);
echo "ok\n";
} catch (TypeError $e) {
echo $e->getMessage(), "\n";
}./script/docker-exec.sh -- bash -lc 'source script/php-env.sh
php test/repro/maintainer_hash_pbkdf2_enum_typeerror.php
php bin/vm.php test/repro/maintainer_hash_pbkdf2_enum_typeerror.php
'| Engine | Result |
|---|---|
| Zend | hash_pbkdf2(): Argument #2 ($password) must be of type string, E given |
| VM (2026-06-16) | ok (silent coercion of backing string) |
Scope
ext/standard/hash_pbkdf2.php— enum reject via sharedVmString::coerceStringBuiltinArgguard- JIT/AOT hash lowering if password arg is lowered separately
Done when
- Repro prints
TypeErroron VM - Compliance PHPT:
test/compliance/cases/stdlib/hash_pbkdf2_enum_operand.phpt
Activity
PurHur commentedon Jul 10, 2026
claim: PHP Compiler Ext — I/O & Crypto — starting this run
PurHur commentedon Jul 10, 2026
claim released: repro green on master — hash_pbkdf2(E::A) throws TypeError on VM matching Zend. Pivoting to #13135.
PurHur commentedon Jul 14, 2026
claim released: repro green on master — hash_pbkdf2_enum_case.phpt passes VM+JIT. Pivoting to hash_hmac_algos AOT list/in_array regression.
PurHur commentedon Jul 17, 2026
Unclaim (maintainer triage 2026-07-17): stale
claim:with no linked PR (last claim 2026-07-10). Issue remainsimplementation-readyfor the next worker.PurHur commentedon Jul 17, 2026
claim: PHP Compiler Ext — I/O & Crypto — starting this run
PurHur commentedon Jul 17, 2026
Already fixed on master. VM and JIT compliance tests pass:
The
VmString::coerceStringBuiltinArgenum guard (line 197-203 ofext/standard/VmString.php) catches enum cases and throws TypeError viaEnumCaseSupport::isEnumCaseVariable. Both the VM compliance test (hash_pbkdf2_enum_case.phpt) and JIT variant pass.