Stdlib: extension_loaded('zip') false until libzip (#11676)

ext/zip/BuiltinClasses.php

@@ -13,6 +13,10 @@ final class BuiltinClasses
 {
     public static function register(Context $ctx): void
     {
+        if (!ZipExtensionPolicy::advertisesExtension()) {
+            return;
+        }
+
         $before = array_keys($ctx->classes);
         VmZipArchive::registerClass($ctx);
         foreach (array_diff(array_keys($ctx->classes), $before) as $lc) {

ext/zip/Module.php

@@ -10,10 +10,16 @@
 /**
  * zip extension module entry (php-src ext/zip/php_zip.c; issue #5869).
  *
- * ZipArchive open/extract in ext/zip PHP (issues #3337, #6414); v1 skeleton enables class_exists() and inventory.
+ * ZipArchive parity tracked in #3337; register under {@see standard} so
+ * extension_loaded('zip') stays false until libzip ships (#11676).
  */
 class Module extends ModuleAbstract
 {
+    public function getExtensionName(): string
+    {
+        return 'standard';
+    }
+
     public function init(Runtime $runtime): void
     {
         parent::init($runtime);

ext/zip/ZipExtensionPolicy.php

@@ -0,0 +1,20 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PHPCompiler\ext\zip;
+
+use PHPCompiler\ext\standard\ModuleRegistry;
+
+/**
+ * ext/zip surface advertisement — php-src ext/zip/php_zip.c (#11676).
+ *
+ * ZipArchive registers only when {@see ModuleRegistry::extensionLoaded}('zip') is true (#3337).
+ */
+final class ZipExtensionPolicy
+{
+    public static function advertisesExtension(): bool
+    {
+        return ModuleRegistry::extensionLoaded('zip');
+    }
+}

test/compliance/cases/stdlib/extension_loaded_zip_phantom.phpt

@@ -0,0 +1,13 @@
+--TEST--
+stdlib extension_loaded('zip') false until libzip implemented (#11676, ext/zip/php_zip.c)
+--FILE--
+<?php
+declare(strict_types=1);
+
+echo 'loaded=', (int) extension_loaded('zip'), "\n";
+echo 'in_list=', (int) in_array('zip', get_loaded_extensions(), true), "\n";
+echo 'class=', (int) class_exists('ZipArchive'), "\n";
+--EXPECT--
+loaded=0
+in_list=0
+class=0

test/repro/maintainer_gap_extension_loaded_zip_phantom.php

@@ -0,0 +1,29 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * Issue #11676 — extension_loaded('zip') phantom probe (ext/zip/php_zip.c).
+ */
+
+$loaded = extension_loaded('zip') ? 'yes' : 'no';
+$zipArchive = class_exists('ZipArchive') ? 'yes' : 'no';
+
+$probe = 'absent';
+if ($zipArchive === 'yes') {
+    try {
+        new ZipArchive();
+        $probe = 'ok';
+    } catch (Throwable $e) {
+        $probe = $e::class;
+    }
+}
+
+echo "loaded={$loaded} ZipArchive={$zipArchive} probe={$probe}\n";
+
+if ($loaded !== 'no' || $zipArchive !== 'no') {
+    echo "fail: zip probe must be absent until ext/zip parity (#3337)\n";
+    exit(1);
+}
+
+echo "ok\n";