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Language: implicit nullable (int $x = null) E_DEPRECATED still silent on file compile under PROFILE=8.4 (re-#26083, Zend/zend_compile.c) #30738
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77fa3acede(after the filing tipe188cdc565). FileparseAndCompilealready emits Zend-shapedE_DEPRECATEDviaCompiler::maybeEmitImplicitNullableParamDeprecation()(lib/Compiler.php) whenCompilerVersion::supportsImplicitNullableParameterDeprecation()is true.Runtime::compile()sets$compiler->setVmContext()so file compile (VM not yet running) still reports.Issue repro (Docker, php-src-strict)
$ ./script/docker-exec.sh -- bash -lc 'PHP_COMPILER_PROFILE=8.4 php -d error_reporting=E_ALL bin/vm.php -r "function f(int \$x = null) { var_export(\$x); echo PHP_EOL; } f();"' PHP Deprecated: f(): Implicitly marking parameter $x as nullable is deprecated, the explicit nullable type must be used instead in Command line code on line 1 NULLSame deprecation on file compile (
bin/vm.php,bin/jit.php) and duringphpc build(AOT compile then hit an unrelated LLVM verify failure on this snippet).Done-when
Check Result PROFILE=8.4 file compile emits f(): Implicitly marking…yes Wording vs php-src ( Zend/tests/gh11488.phpt/ RFC)must be used instead— Zend 8.4 does not say?int should be used instead(that was a paraphrase in the filing table)PROFILE=8.2 / unset profile silent ( NULLonly)?int $x = nullno deprecation Compliance .phpt./script/phpunit.sh --filter ImplicitNullableDeprecatedPrefixVMTest→ OK (2 tests)php-src-strict; no php-compiler-strict shortcut.
Pillar 1 (this run)
./script/release-readiness.sh --json→user_release_ready: yes; inventoryOK 7386/7386;north-star5-fastok.gen0_provenance: staleremains #28998 (exclusive lane A sidecar refresh). Did not runbootstrap-selfhost-link(would collide with that exclusive rebuild).
Category
bug· php-src-strict · PHP 8.4 implicit-nullable deprecationProblem
PHP 8.4 deprecates implicitly nullable typed parameters (
function f(int $x = null)without?int).CompilerVersion::supportsImplicitNullableParameterDeprecation()is already true underPHP_COMPILER_PROFILE=8.4, but fileparseAndCompileemits noE_DEPRECATED— the callable still runs and printsNULL.Closed as fixed in #26083 / #23720 / #22987 / #21390 / #29274 (wording). Tip
e188cdc565is silent again.e188cdc565)PHP_COMPILER_PROFILE=8.4function f(int $x = null) { var_export($x); } f();E_DEPRECATED: f(): Implicitly marking parameter $x as nullable is deprecated, the explicit nullable type ?int should be used insteadthenNULLNULLonly (no Deprecated) ❌Host Zend 8.2 is silent (correct).
PROFILE=8.2/ unset 8.4.0-dev should stay silent; the missing diagnostic is the 8.4 compile-time deprecation.php-src reference
Zend/zend_compile.c—zend_compile_params/ RFC deprecate-implicitly-nullable-typesUPGRADING— PHP 8.4 implicit nullablePHP implementation target
lib/Compiler.phpparam compile (or existing implicit-nullable rewriter) — emit Zend-shapedE_DEPRECATEDwhensupportsImplicitNullableParameterDeprecation()f(): Implicitly marking…(Language: implicit nullable E_DEPRECATED omits function name prefix — Zend "f(): Implicitly marking…" (zend_compile.c) #29274)Repro
./script/docker-exec.sh -- bash -lc 'PHP_COMPILER_PROFILE=8.4 php -d error_reporting=E_ALL bin/vm.php -r "function f(int \$x = null) { var_export(\$x); echo PHP_EOL; } f();"'Done when
E_DEPRECATEDwording matches Zend (f(): Implicitly marking parameter $x as nullable is deprecated, the explicit nullable type ?int should be used instead)PROFILE=8.2/ unset reference: still silent like Zend 8.2?int $x = nulldoes not deprecate.phpt+ php-src-strict; no php-compiler-strict shortcut