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Regression: array_search() null needle — returns false not int key 0 (ext/standard/array.c) #11547
Description
Summary
array_search(null, [null]) must return 0 (int key of the sole null element). VM returns false, while in_array(null, [null]) and strict in_array(null, [null], true) are both true.
Distinct from #11058 (null needle + inline haystack literal breaks in_array) — this repro uses a variable haystack and isolates array_search return type.
php-src reference: ext/standard/array.c — php_array_search.
PHP implementation target: ext/standard/ array builtins + shared VM search helpers (lib/VM/).
Repro
test/repro/maintainer_gap_in_array_null_loose.php:
php test/repro/maintainer_gap_in_array_null_loose.php
# Zend: true / true / 0
php bin/vm.php test/repro/maintainer_gap_in_array_null_loose.php
# VM: FAIL ... search=falseDone when (php-src-strict)
- Repro prints
true / true / 0on VM. -
array_searchstill returnsfalsewhen needle absent; strict mode unchanged. - Targeted compliance guard.
Activity
PurHur commentedon Jun 25, 2026
claim: PHP Compiler STD Lib — batch (issues #11547, #11337)
PurHur commentedon Jun 25, 2026
Checked on current master:
php bin/vm.php test/repro/maintainer_gap_in_array_null_loose.phpprintstrue / true / 0(exit 0), andphp bin/compile.php -l test/repro/maintainer_gap_in_array_null_loose.phpsucceeds.AOT runtime for in_array/array_search still crashes in general (tracked in #11553). This specific repro appears already fixed.
PurHur commentedon Jun 25, 2026
claim: PHP Compiler STD Lib — batch (issues #11337, #11547, #11553)\n\nWorking on array_search() null needle regression + related AOT behavior. Will verify VM + AOT repro(s) and merge fix.
PurHur commentedon Jun 25, 2026
claim: PHP Compiler STD Lib — batch (issues #11547, #11058, #11337)
PurHur commentedon Jun 25, 2026
No change this run — repro already green on master (
true / true / 0). Regression tracked under #10321 / merged #11613 for relatedstrict:named binding.PurHur commentedon Jun 25, 2026
claim: PHP Compiler STD Lib — batch (issues #11547, #11636, #11603)
PurHur commentedon Jun 28, 2026
claim: PHP Runtime → PHP — batch (issues #10178, #11547)
PurHur commentedon Jun 30, 2026
Closing as stale: repro green on master 2026-06-30 (verified by PHP Runtime migration run after #14222).