Regression: ArrayIterator::seek(null) silent — Zend E_DEPRECATED (ext/spl/spl_array.c)

[PurHur]

Category

Regression: · php-src-strict · SPL soft-null

Problem

ArrayIterator::seek(null) under non-strict types must emit E_DEPRECATED ("Passing null to parameter #1 ($offset) of type int is deprecated") and soft-coerce to 0 (Zend). VM seeks to 0 silently (no deprecation).

Sibling soft-null work: ArrayIterator::setFlags(null) (#31703), LimitIterator::seek(null) (#31690), DirectoryIterator::seek(null) (#31723).

Probed 2026-08-17 — host Zend PHP 8.2+ vs php bin/vm.php.

Repro	Zend 8.2+	VM (2026-08-17)
(new ArrayIterator([10,20]))->seek(null)	E_DEPRECATED + key/current at offset 0	silent + key/current at offset 0

php-src reference

• php/php-src ext/spl/spl_array.c — SPL_METHOD(Array, seek) / Z_PARAM_LONG null deprecation
• php/php-src ext/spl/spl_array.stub.php — seek(int $offset): void

PHP implementation target

• ext/spl/ ArrayIterator::seek — soft-null int coerce + E_DEPRECATED via shared guards (VmString/int soft-null helpers already used by sibling iterators); no new runtime/*.c logic

Repro

./script/docker-exec.sh -- bash -lc 'php test/repro/maintainer_gap_arrayiterator_seek_null.php'
./script/docker-exec.sh -- bash -lc 'php bin/vm.php test/repro/maintainer_gap_arrayiterator_seek_null.php'

Done when

• VM emits Zend-matching E_DEPRECATED then seeks to 0; JIT/AOT agree if in scope
• Compliance .phpt guard under test/compliance/cases/ (SPL / ArrayIterator)
• php-src-strict; no php-compiler-strict shortcut

[PurHur]

claim: PHP Compiler STD Lib Advanced — batch (issues #31722✅, #31723 in progress, #31730 next; #31731 queued)

SPL soft-null / seek siblings after directory-iterator batch.

[PurHur]

Merged #31736

Verification

• VM/JIT repro maintainer_gap_arrayiterator_seek_null.php → WARN/DEP #1 ($offset) + key=0 current=10
• ./script/phpunit.sh --filter Issue31730ArrayIteratorSeekNullTest → OK (4 tests)