Regression: extension_loaded('pgsql')/function_exists('pg_connect')/PGSQL_* phantom — Zend ext/pgsql absent (ext/pgsql)

[PurHur]

Category

stdlib · php-src-strict · phantom extension (pgsql)

Problem

Reference Zend 8.2 CLI in the pinned container does not load ext/pgsql. php-compiler still reports the extension and procedural entry points as present (extension_loaded('pgsql'), function_exists('pg_connect'), defined('PGSQL_CONNECT_FORCE_NEW')).

Related but distinct from #24627 (pg_set_error_context_visibility under PROFILE=8.4) — this is default-profile extension_loaded / symbol phantom vs an absent Zend module.

Probed 2026-07-29 Zend 8.2.32 vs bin/vm.php @ a4c54c0ef.

Repro	Zend 8.2	VM
extension_loaded('pgsql')	false	true
function_exists('pg_connect')	false	true
defined('PGSQL_CONNECT_FORCE_NEW')	false	true

php-src reference

• php/php-src ext/pgsql/pgsql.c — module + pg_connect
• php/php-src ext/pgsql/pgsql.stub.php — constants

PHP implementation target

• Gate ext/pgsql registration on the same “extension actually available / side-loaded” policy as other phantom fixes (ext/curl Regression: extension_loaded('curl')/function_exists('curl_init') phantom — Zend ext/curl absent (ext/curl/interface.c) #23953, ext/mysqli Regression: extension_loaded('mysqli')/function_exists('mysqli_connect')/class_exists phantom — Zend ext/mysqli absent (ext/mysqli/mysqli.c) #23954, …)
• Prefer not compiling pgsql into every binary (extensions-sideloaded); extension_loaded must match Zend for the active profile
• PHP-in-PHP registry; no new C

Repro

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

Done when

• On reference profile matching container Zend: extension_loaded('pgsql'), pg_connect, and PGSQL_* consts agree with Zend (absent → false)
• Repro/compliance guard; php-src-strict
• Does not break intentional PROFILE / side-load enabling of pgsql when that path is explicitly configured

[PurHur]

claim: PHP Compiler STD Lib Advanced — batch (#24968, #24993, #24994). Queued after #24993.

[PurHur]

Handoff — advanced stdlib batch (this run)

Merged this run (≥3):

Issue	PR
#24950 hexdec/octdec/bindec/base_convert invalid-digit E_DEPRECATED	#24998
#24968 setcookie named path: resolveIndirect crash	#25000
#24993 extension_loaded opcache vs Zend OPcache	#25003

Next (claimed): #24994 pgsql phantom extension_loaded / pg_connect / PGSQL_* — use same withhold pattern as #23953 curl / #24128 grapheme (PgsqlExtensionPolicy already exists under ext/pgsql/; gate ModuleRegistry + constants).

Not started this run after #24993 merge.

[PurHur]

claim: PHP Compiler STD Lib Advanced — batch (#24994, #24627, #25010, #25011). Starting #24994 pgsql phantom (host extension_loaded gate; PROFILE=8.4 must not invent).

[PurHur]

merged via #25037

Verification:

./script/docker-exec.sh -- bash -lc 'source script/php-env.sh
php test/repro/maintainer_gap_pgsql_phantom.php
php bin/vm.php test/repro/maintainer_gap_pgsql_phantom.php
PHP_COMPILER_PROFILE=8.4 php bin/vm.php test/repro/maintainer_gap_pgsql_phantom.php'
# all false — matches Zend

vendor/bin/phpunit --filter 'PgsqlExtensionPolicyTest|extension_loaded_pgsql_phantom|pgsql_connect_failure|pgsql_php84_exists|pgsql_error_context_visibility$'
# OK (11)

Also closes #24627 (same module gate). Next in batch: #25010 zip, #25011 bz2.

[PurHur]

Batch complete (≥3 merges): #24994+#24627 via #25037; #25010 via #25040; #25011 via #25041. Shared pattern: host extension_loaded or PHP_COMPILER_ENABLE_*=1, not PROFILE alone.