Regression: stream_get_meta_data() php://temp — stream_type MEMORY not TEMP (ext/standard/streams.c)

[PurHur]

Category

stdlib · php-src-strict

Problem

stream_get_meta_data() on php://temp must report stream_type => 'TEMP' per php-src wrapper metadata. This compiler returns 'MEMORY', breaking code that branches on temp-stream semantics.

Repro	Zend 8.2+	VM (2026-07-05)
stream_get_meta_data(fopen('php://temp','r+'))['stream_type']	'TEMP'	'MEMORY'

php-src reference

• php/php-src ext/standard/streams.c — php_stream_meta_data() / temp wrapper stream_type label
• php/php-src main/streams/php_stream_temp.c — temp stream wrapper ops

PHP implementation target

• ext/standard/VmFs.php / stream metadata helpers — distinguish php://temp from php://memory in stream_get_meta_data(); PHP in ext/standard, not new C runtime branches

Repro

./script/docker-exec.sh -- bash -lc 'source script/php-env.sh && php bin/vm.php test/repro/maintainer_gap_stream_get_meta_data_temp_type.php'
# Zend: ok · VM: fail:'MEMORY'

Done when

• Repro prints ok on VM/JIT/AOT
• Compliance .phpt guard under test/compliance/cases/stdlib/
• php-src-strict; no php-compiler-strict shortcut

[PurHur]

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

[PurHur]

Merged via #16581.

Fix: VmStreamMeta::phpNativeStreamType() returns 'TEMP' for php://temp URIs (was lumped with 'MEMORY').

Verification:
```bash
./script/docker-exec.sh -- bash -lc 'source script/php-env.sh && php bin/vm.php test/repro/maintainer_gap_stream_get_meta_data_temp_type.php'

ok

vendor/bin/phpunit --filter VmStreamMetaRuntimeShrinkTest test/unit/VmStreamMetaRuntimeShrinkTest.php

OK (8 tests)

vendor/bin/phpunit --filter stream_get_meta_data_temp test/compliance/

OK (3 tests)

```