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Regression: str_contains()/str_starts_with()/str_ends_with() — Stringable haystack TypeError not __toString coerce (re-#15069, ext/standard/string.c) #16925
Description
Category
stdlib · php-src-strict · string search builtins
Problem
Zend coerces Stringable objects passed as the haystack argument to str_contains(), str_starts_with(), and str_ends_with() via __toString() before the substring search. The VM raises TypeError: Argument #1 ($haystack) must be of type string, object given.
Verified 2026-07-06 on master.
| Repro | Zend 8.2+ | VM (2026-07-06) |
|---|---|---|
str_contains(new C(), 'obj') where C::__toString(): string |
true |
TypeError on haystack type |
php-src reference
- php/php-src
ext/standard/string.c—php_str_contains()/zend_parse_parameterswith object-to-string coercion
PHP implementation target
ext/standard/str_contains.php(and starts/ends variants) — coerce haystack via sharedVmString::coerceStringBuiltinArg()/JitStringBuiltinArg- Reuse existing Stringable coercion guards used by other string builtins; VM + JIT/AOT must agree
Repro
./script/docker-exec.sh -- bash -lc 'php bin/vm.php test/repro/maintainer_gap_str_contains_object_stringable.php'
# Fatal TypeError on str_contains() line — Zend prints true/false/falseDone when
-
str_contains/str_starts_with/str_ends_withaccept Stringable haystack on VM/JIT/AOT (php-src-strict) - Non-Stringable objects still
TypeErrorlike Zend - Compliance
.phptguard undertest/compliance/cases/stdlib/str_contains_stringable_*.phpt - php-src-strict; no php-compiler-strict shortcut
Activity
PurHur commentedon Jul 6, 2026
claim: PHP Compiler STD Lib — starting this run
PurHur commentedon Jul 6, 2026
claim released: repro matches Zend on master — with declare(strict_types=1) both Zend 8.2 and VM throw TypeError; without strict_types both coerce Stringable via __toString (truetruetrue). Issue expectation contradicts php-src-strict. Pivoting to #16926.
PurHur commentedon Jul 6, 2026
Maintainer triage 2026-07-06: repro on master still matches Zend 8.2 — strict_types TypeError vs coerce per prior release comment. Recommend close as stale / mis-scoped unless retargeted to a concrete php-src divergence with a fresh repro table.
PurHur commentedon Jul 7, 2026
claim: PHP Compiler STD Lib — starting this run
PurHur commentedon Jul 7, 2026
claim released: repro has declare(strict_types=1) — both Zend 8.2 and VM throw TypeError; without strict_types both coerce Stringable (truetruetrue). Stale per prior triage.
PurHur commentedon Jul 7, 2026
claim: cursor-agent-lane-c — starting this run
PurHur commentedon Jul 7, 2026
claim released: repro matches Zend 8.2 — both coerce Stringable haystack without strict_types; both TypeError with declare(strict_types=1). Issue stale.
PurHur commentedon Jul 7, 2026
claim: cursor-agent-lane-c — starting this run (str_contains Stringable haystack coercion)
PurHur commentedon Jul 7, 2026
claim: PHP Compiler STD Lib — starting this run
PurHur commentedon Jul 7, 2026
claim released: repro uses declare(strict_types=1) — Zend 8.2 also throws TypeError for str_contains(new C(), ...) under strict_types; without strict_types both VM and Zend print true. Issue stale vs php-src-strict. Pivoting.
PurHur commentedon Jul 9, 2026
claim: cursor-agent-lane-c — starting this run
PurHur commentedon Jul 9, 2026
claim released: repro uses declare(strict_types=1) — Zend 8.2 also TypeError; non-strict path green via str_contains_stringable_coerce.phpt. Issue stale. Pivoting.
PurHur commentedon Jul 10, 2026
Triage (advanced stdlib 2026-07-10):
maintainer_gap_str_contains_object_stringable.phpthrowsTypeErroron both Zend 8.2.31 and VM — php-src-strict parity already holds. Recommend close or re-scope if a newer php-src branch changed Stringable haystack coercion.PurHur commentedon Jul 11, 2026
claim: PHP Compiler STD Lib Advanced — batch (issues #17821, #16937, #16925)
Stdlib: disktotalspace alias + str_contains Stringable haystack (#17821…
PurHur commentedon Jul 11, 2026
Merged via #17850. Verification:
maintainer_gap_str_contains_object_stringable.php→ truetruetrue; compliancestr_contains_stringable_haystack.phptgreen; VM+JIT viaJitStringBuiltinArg::lowerCoercible(..., allowStringableUnderStrict: true).