Stdlib: filter_var() FILTER_* named filter constants rejected — LogicException not validated value (ext/filter/filter.c)

[PurHur]

Category

stdlib · php-src-strict

Problem

filter_var() second argument cannot accept FILTER_* named constants—the VM throws:

LogicException: filter_var() filter must be an integer in this compiler build

Call	Zend	VM today
filter_var('42', FILTER_VALIDATE_INT)	42	LogicException
filter_var('not-int', FILTER_VALIDATE_INT)	false	LogicException

Distinct from umbrella #4403 (full ext/filter parity)—this is the constant-binding blocker that prevents any FILTER_* call from working today.

php-src reference

• php/php-src ext/filter/filter.c — php_filter_var, filter id constants
• php/php-src ext/filter/php_filter.h — FILTER_VALIDATE_* ids

Repro

./script/docker-exec.sh -- bash -lc 'source script/php-env.sh && php bin/vm.php test/repro/maintainer_gap_filter_var_constants.php'
php bin/vm.php test/repro/maintainer_gap_filter_var_constants.php

Implementation hints (PHP-in-PHP)

• ext/filter/filter_var.php (or ext/standard/ shim) — resolve FILTER_* ints via shared builtin constant helper
• Register filter constants in StdlibConstants or ext/filter module bootstrap if missing

Done when

• Repro script matches Zend under VM
• FILTER_VALIDATE_INT, FILTER_VALIDATE_BOOL, FILTER_SANITIZE_STRING smoke paths work
• Compliance guard added
• JIT/AOT agree if filter id lowering exists

Related

• Stdlib: filter_var() — full ext/filter parity (filters, flags, options array, warnings) #4403, Stdlib: filter_var() FILTER_VALIDATE_BOOL — bool validation parity (ext/filter/filter.c) #4934 — broader filter parity
• Stdlib: round() PHP_ROUND_HALF_* named constant mode rejected — TypeError null given (ext/standard/math.c) #9564, Stdlib: ksort()/asort() inline SORT_* flag expressions rejected at runtime (ext/standard/array.c) #9278 — int constant binding pattern
• North star Epic: Self-host critical path — compiler compiles itself (M3→M5) #1492

[PurHur]

claim: cursor-agent-lane-a — starting this run

[PurHur]

claim released: repro green on master — filter_var('42', FILTER_VALIDATE_INT) returns int(42); filter_var('not-int', FILTER_VALIDATE_INT) returns false; FILTER_SANITIZE_STRING works. Issue stale.

[PurHur]

claim: PHP Compiler STD Lib Advanced — batch (issues #9588 #10014 #10374)

[PurHur]

Merged via #18685.\n\nVerification:\n- ./vendor/bin/phpunit test/compliance/VMTest.php --filter filter_var_constants\n- ./vendor/bin/phpunit test/compliance/JITTest.php --filter filter_var_constants_jit