diff --git a/docs/bootstrap-inventory.md b/docs/bootstrap-inventory.md
index cd87308f08..6e124816e9 100644
--- a/docs/bootstrap-inventory.md
+++ b/docs/bootstrap-inventory.md
@@ -8,11 +8,11 @@ Regenerate: `php script/bootstrap-inventory.php`
 
 | Metric | Count |
 |--------|------:|
-| PHP files on vm.php path | 6561 |
-| Phase A inventory files (M2 ratio SSOT) | 6561 |
+| PHP files on vm.php path | 6562 |
+| Phase A inventory files (M2 ratio SSOT) | 6562 |
 | Phase A ratio-deferred paths | 0 |
 | Source constructs flagged (blockers) | 0 |
-| Source constructs flagged (warnings) | 21094 |
+| Source constructs flagged (warnings) | 21100 |
 
 ## Compiler CFG gaps (`lib/Compiler.php`)
 
@@ -1859,6 +1859,7 @@ Rank live CFG gaps across inventory files: `php script/bootstrap-inventory-triag
 | `ext/soap/SoapFaultConstruct.php` | 0 | 1 |
 | `ext/soap/VmSoapClient.php` | 0 | 60 |
 | `ext/soap/VmSoapEncoding.php` | 0 | 32 |
+| `ext/soap/VmSoapOpaque.php` | 0 | 6 |
 | `ext/soap/VmSoapServer.php` | 0 | 47 |
 | `ext/soap/bootstrap_soapfault.php` | 0 | 1 |
 | `ext/soap/is_soap_fault.php` | 0 | 2 |
@@ -21588,14 +21589,14 @@ Rank live CFG gaps across inventory files: `php script/bootstrap-inventory-triag
 ### `ext/soap/BuiltinClasses.php`
 
 **Warnings** (review for bootstrap subset):
-- new Variable (line 47)
-- new Variable (line 48)
 - new Variable (line 49)
-- new ClassProperty (line 57)
-- new ClassProperty (line 60)
-- new ClassProperty (line 63)
-- new ClassProperty (line 66)
-- new SoapFaultConstruct (line 69)
+- new Variable (line 50)
+- new Variable (line 51)
+- new ClassProperty (line 59)
+- new ClassProperty (line 62)
+- new ClassProperty (line 65)
+- new ClassProperty (line 68)
+- new SoapFaultConstruct (line 71)
 - 2 class method(s)
 
 ### `ext/soap/Module.php`
@@ -21618,7 +21619,7 @@ Rank live CFG gaps across inventory files: `php script/bootstrap-inventory-triag
 ### `ext/soap/SoapExtensionPolicy.php`
 
 **Warnings** (review for bootstrap subset):
-- 8 class method(s)
+- 9 class method(s)
 
 ### `ext/soap/SoapFaultConstruct.php`
 
@@ -21725,6 +21726,16 @@ Rank live CFG gaps across inventory files: `php script/bootstrap-inventory-triag
 - new ArgumentCountError (line 220)
 - 10 class method(s)
 
+### `ext/soap/VmSoapOpaque.php`
+
+**Warnings** (review for bootstrap subset):
+- new ClassEntry (line 46)
+- new ObjectEntry (line 60)
+- new ObjectEntry (line 74)
+- new Variable (line 82)
+- new Variable (line 90)
+- 6 class method(s)
+
 ### `ext/soap/VmSoapServer.php`
 
 **Warnings** (review for bootstrap subset):
@@ -52709,7 +52720,7 @@ Rank live CFG gaps across inventory files: `php script/bootstrap-inventory-triag
 ### `lib/VM/ReservedBuiltinClass.php`
 
 **Warnings** (review for bootstrap subset):
-- new Error (line 47)
+- new Error (line 50)
 - 4 class method(s)
 
 ### `lib/VM/ResourceSupport.php`
diff --git a/docs/capabilities.md b/docs/capabilities.md
index 735a336526..6dd2f7e901 100644
--- a/docs/capabilities.md
+++ b/docs/capabilities.md
@@ -1200,7 +1200,7 @@ Auto-generated by `script/capability-matrix.php`. Do not edit by hand.
 | `str_starts_with` | yes | yes | yes | standard | JIT PHPT; AOT PHPT |
 | `str_word_count` | yes | yes | yes | standard | JIT PHPT; AOT PHPT |
 | `strcasecmp` | yes | yes | yes | standard | JIT PHPT; AOT PHPT |
-| `strchr` | yes | yes | yes | standard |  |
+| `strchr` | yes | yes | yes | standard | JIT PHPT; AOT PHPT |
 | `strcmp` | yes | yes | yes | standard | JIT PHPT; AOT PHPT |
 | `strcoll` | yes | yes | yes | standard | JIT PHPT |
 | `strcspn` | yes | yes | yes | standard | empty $characters: PHP 8.4 full byte length (GH-12592, #7088); JIT PHPT; AOT PHPT |
diff --git a/docs/pages/capability-comparison.html b/docs/pages/capability-comparison.html
index 28b79a9310..ab4cffd531 100644
--- a/docs/pages/capability-comparison.html
+++ b/docs/pages/capability-comparison.html
@@ -52,7 +52,7 @@ <h1>PHP capability comparison</h1>
           This is <em>not</em> a full php-src inventory — only items we measure in
           <a href="https://github.com/PurHur/php-compiler/blob/master/docs/capabilities-syntax.md"><code>capabilities-syntax.md</code></a>
           and <a href="https://github.com/PurHur/php-compiler/blob/master/docs/capabilities.md"><code>capabilities.md</code></a>.
-          Generated 2026-07-25 (matrix mtime).
+          Generated 2026-07-26 (matrix mtime).
         </p>
       </header>
 
diff --git a/ext/soap/BuiltinClasses.php b/ext/soap/BuiltinClasses.php
index 9c1056f4d7..864e0ce14b 100644
--- a/ext/soap/BuiltinClasses.php
+++ b/ext/soap/BuiltinClasses.php
@@ -23,6 +23,8 @@ public static function register(Context $ctx): void
         VmSoapEncoding::register($ctx);
         VmSoapServer::registerClass($ctx);
         VmSoapClient::registerClass($ctx);
+        // PHP 8.4+ Soap\Url / Soap\Sdl opaque types (#23230).
+        VmSoapOpaque::register($ctx);
         foreach (\array_diff(\array_keys($ctx->classes), $before) as $lc) {
             $ctx->classes[$lc]->isInternal = true;
         }
diff --git a/ext/soap/SoapExtensionPolicy.php b/ext/soap/SoapExtensionPolicy.php
index 46125a4540..2e6ae1f223 100644
--- a/ext/soap/SoapExtensionPolicy.php
+++ b/ext/soap/SoapExtensionPolicy.php
@@ -36,6 +36,24 @@ public static function advertisesExceptionClass(): bool
         return self::advertisesExtension();
     }
 
+    /**
+     * Soap\Url / Soap\Sdl — php-src 8.4+ only (soap.stub.php resource→object; #23230).
+     *
+     * SoapClient may be advertised via host php-soap on 8.2; these types stay withheld until
+     * the effective language profile (or host PHP) is ≥ 8.4.
+     */
+    public static function advertisesOpaqueUrlSdlTypes(): bool
+    {
+        if (!self::advertisesExtension()) {
+            return false;
+        }
+        if (\version_compare(\PHP_VERSION, '8.4.0', '>=')) {
+            return true;
+        }
+
+        return \version_compare(\PHPCompiler\CompilerVersion::languageProfileVersion(), '8.4.0', '>=');
+    }
+
     /** Compliance filenames that exercise SoapClient / SoapServer / SoapFault. */
     public static function isSoapComplianceCase(string $testFileName): bool
     {
diff --git a/ext/soap/VmSoapOpaque.php b/ext/soap/VmSoapOpaque.php
new file mode 100644
index 0000000000..0c6416c42f
--- /dev/null
+++ b/ext/soap/VmSoapOpaque.php
@@ -0,0 +1,95 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PHPCompiler\ext\soap;
+
+use PHPCompiler\VM\ClassEntry;
+use PHPCompiler\VM\Context;
+use PHPCompiler\VM\ObjectEntry;
+use PHPCompiler\VM\Variable;
+
+/**
+ * Soap\Url / Soap\Sdl — PHP 8.4 resource→object opaque types (php-src ext/soap/soap.stub.php; #23230).
+ *
+ * Final internal classes; userland `new` rejected via {@see \PHPCompiler\VM\ReservedBuiltinClass}.
+ */
+final class VmSoapOpaque
+{
+    public const URL_CLASS = 'Soap\\Url';
+
+    public const URL_CLASS_LC = 'soap\\url';
+
+    public const SDL_CLASS = 'Soap\\Sdl';
+
+    public const SDL_CLASS_LC = 'soap\\sdl';
+
+    public static function register(Context $ctx): void
+    {
+        if (!SoapExtensionPolicy::advertisesOpaqueUrlSdlTypes()) {
+            return;
+        }
+
+        self::registerOne($ctx, self::URL_CLASS, self::URL_CLASS_LC);
+        self::registerOne($ctx, self::SDL_CLASS, self::SDL_CLASS_LC);
+    }
+
+    private static function registerOne(Context $ctx, string $name, string $lc): void
+    {
+        if (isset($ctx->classes[$lc])) {
+            $ctx->classes[$lc]->isInternal = true;
+            $ctx->classes[$lc]->isFinal = true;
+
+            return;
+        }
+
+        $entry = new ClassEntry($name);
+        $entry->isInternal = true;
+        $entry->isFinal = true;
+        $ctx->classes[$lc] = $entry;
+    }
+
+    /** Factory for SoapClient::$httpurl / related wiring (php-src soap_url_object_create). */
+    public static function newUrlObject(Context $ctx): ObjectEntry
+    {
+        self::register($ctx);
+        $class = $ctx->classes[self::URL_CLASS_LC] ?? null;
+        if (null === $class) {
+            throw new \LogicException('Soap\\Url is not registered in this compiler build');
+        }
+        $object = new ObjectEntry($class);
+        $object->constructed = true;
+
+        return $object;
+    }
+
+    /** Factory for SoapClient::$sdl (php-src soap_sdl_object_create). */
+    public static function newSdlObject(Context $ctx): ObjectEntry
+    {
+        self::register($ctx);
+        $class = $ctx->classes[self::SDL_CLASS_LC] ?? null;
+        if (null === $class) {
+            throw new \LogicException('Soap\\Sdl is not registered in this compiler build');
+        }
+        $object = new ObjectEntry($class);
+        $object->constructed = true;
+
+        return $object;
+    }
+
+    public static function urlVariable(Context $ctx): Variable
+    {
+        $var = new Variable(Variable::TYPE_OBJECT);
+        $var->object(self::newUrlObject($ctx));
+
+        return $var;
+    }
+
+    public static function sdlVariable(Context $ctx): Variable
+    {
+        $var = new Variable(Variable::TYPE_OBJECT);
+        $var->object(self::newSdlObject($ctx));
+
+        return $var;
+    }
+}
diff --git a/lib/VM/ReservedBuiltinClass.php b/lib/VM/ReservedBuiltinClass.php
index 9312c2230c..00af8f49c1 100644
--- a/lib/VM/ReservedBuiltinClass.php
+++ b/lib/VM/ReservedBuiltinClass.php
@@ -25,6 +25,9 @@ final class ReservedBuiltinClass
         'pgsql\\connection' => 'Cannot directly construct PgSql\Connection, use pg_connect() or pg_pconnect() instead',
         'pgsql\\result' => 'Cannot directly construct PgSql\Result, use a dedicated function instead',
         'pgsql\\lob' => 'Cannot directly construct PgSql\Lob, use pg_lo_open() instead',
+        // php-src ext/soap/soap.c soap_url/sdl_object_get_constructor (#23230)
+        'soap\\url' => 'Cannot directly construct Soap\\Url',
+        'soap\\sdl' => 'Cannot directly construct Soap\\Sdl',
     ];
 
     /** @var array<string, string> lc => display name — runtime implements guard (#13327, #15445, #18781) */
diff --git a/test/compliance/cases/stdlib/extension_loaded_soap_phantom.phpt b/test/compliance/cases/stdlib/extension_loaded_soap_phantom.phpt
index fbeed54a7f..c2f0efade1 100644
--- a/test/compliance/cases/stdlib/extension_loaded_soap_phantom.phpt
+++ b/test/compliance/cases/stdlib/extension_loaded_soap_phantom.phpt
@@ -12,6 +12,8 @@ echo 'use_soap_error_handler=', (int) function_exists('use_soap_error_handler'),
 echo 'SoapClient=', (int) class_exists('SoapClient', false), "\n";
 echo 'SoapServer=', (int) class_exists('SoapServer', false), "\n";
 echo 'SoapFault=', (int) class_exists('SoapFault', false), "\n";
+echo 'SoapUrl=', (int) class_exists('Soap\\Url', false), "\n";
+echo 'SoapSdl=', (int) class_exists('Soap\\Sdl', false), "\n";
 ?>
 --EXPECT--
 loaded=0
@@ -22,3 +24,5 @@ use_soap_error_handler=0
 SoapClient=0
 SoapServer=0
 SoapFault=0
+SoapUrl=0
+SoapSdl=0
diff --git a/test/compliance/cases/stdlib/soap_url_sdl_classes.phpt b/test/compliance/cases/stdlib/soap_url_sdl_classes.phpt
new file mode 100644
index 0000000000..ef6179fe22
--- /dev/null
+++ b/test/compliance/cases/stdlib/soap_url_sdl_classes.phpt
@@ -0,0 +1,32 @@
+--TEST--
+Stdlib: Soap\Url / Soap\Sdl final internal classes on soap PROFILE=8.4+ (#23230, ext/soap/soap.stub.php)
+--FILE--
+<?php
+declare(strict_types=1);
+
+echo 'url=', (int) class_exists('Soap\\Url', false), "\n";
+echo 'sdl=', (int) class_exists('Soap\\Sdl', false), "\n";
+$ru = new ReflectionClass('Soap\\Url');
+$rs = new ReflectionClass('Soap\\Sdl');
+echo 'url_final=', (int) $ru->isFinal(), ' url_internal=', (int) $ru->isInternal(), "\n";
+echo 'sdl_final=', (int) $rs->isFinal(), ' sdl_internal=', (int) $rs->isInternal(), "\n";
+try {
+    new Soap\Url();
+    echo "url_ctor=ok\n";
+} catch (Error $e) {
+    echo 'url_ctor=', $e->getMessage(), "\n";
+}
+try {
+    new Soap\Sdl();
+    echo "sdl_ctor=ok\n";
+} catch (Error $e) {
+    echo 'sdl_ctor=', $e->getMessage(), "\n";
+}
+?>
+--EXPECT--
+url=1
+sdl=1
+url_final=1 url_internal=1
+sdl_final=1 sdl_internal=1
+url_ctor=Cannot directly construct Soap\Url
+sdl_ctor=Cannot directly construct Soap\Sdl
diff --git a/test/repro/extension_loaded_soap_phantom.php b/test/repro/extension_loaded_soap_phantom.php
index 208238bb24..0727513588 100644
--- a/test/repro/extension_loaded_soap_phantom.php
+++ b/test/repro/extension_loaded_soap_phantom.php
@@ -4,4 +4,6 @@
 echo 'SoapClient=', class_exists('SoapClient', false) ? 'yes' : 'no', "\n";
 echo 'SoapServer=', class_exists('SoapServer', false) ? 'yes' : 'no', "\n";
 echo 'SoapFault=', class_exists('SoapFault', false) ? 'yes' : 'no', "\n";
+echo 'SoapUrl=', class_exists('Soap\\Url', false) ? 'yes' : 'no', "\n";
+echo 'SoapSdl=', class_exists('Soap\\Sdl', false) ? 'yes' : 'no', "\n";
 echo 'is_soap_fault=', function_exists('is_soap_fault') ? 'yes' : 'no', "\n";
diff --git a/test/repro/maintainer_gap_soap_url_sdl_84.php b/test/repro/maintainer_gap_soap_url_sdl_84.php
new file mode 100644
index 0000000000..641d7e3b96
--- /dev/null
+++ b/test/repro/maintainer_gap_soap_url_sdl_84.php
@@ -0,0 +1,32 @@
+<?php
+// repro #23230 — Soap\Url / Soap\Sdl on PROFILE=8.4+ (ext/soap/soap.stub.php)
+declare(strict_types=1);
+
+if (!class_exists('SoapClient', false)) {
+    fwrite(STDERR, "SoapClient missing (need PROFILE>=8.4 or host soap)\n");
+    exit(1);
+}
+
+foreach (['Soap\\Url', 'Soap\\Sdl'] as $name) {
+    if (!class_exists($name, false)) {
+        fwrite(STDERR, "missing $name\n");
+        exit(1);
+    }
+    $r = new ReflectionClass($name);
+    if (!$r->isFinal() || !$r->isInternal()) {
+        fwrite(STDERR, "$name final=".((int) $r->isFinal())." internal=".((int) $r->isInternal())."\n");
+        exit(1);
+    }
+    try {
+        new $name();
+        fwrite(STDERR, "$name construct allowed\n");
+        exit(1);
+    } catch (Error $e) {
+        if (!str_contains($e->getMessage(), 'Cannot directly construct')) {
+            fwrite(STDERR, "$name bad ctor: ".$e->getMessage()."\n");
+            exit(1);
+        }
+    }
+}
+
+echo "ok\n";
diff --git a/test/selfhost/compiler_lib_spine_smoke/main.php b/test/selfhost/compiler_lib_spine_smoke/main.php
index d3c01fba5e..8d3421e66f 100644
--- a/test/selfhost/compiler_lib_spine_smoke/main.php
+++ b/test/selfhost/compiler_lib_spine_smoke/main.php
@@ -1646,6 +1646,7 @@
 require_once __DIR__.'/../../../ext/soap/SoapFaultConstruct.php';
 require_once __DIR__.'/../../../ext/soap/VmSoapClient.php';
 require_once __DIR__.'/../../../ext/soap/VmSoapEncoding.php';
+require_once __DIR__.'/../../../ext/soap/VmSoapOpaque.php';
 require_once __DIR__.'/../../../ext/soap/VmSoapServer.php';
 require_once __DIR__.'/../../../ext/soap/bootstrap_soapfault.php';
 require_once __DIR__.'/../../../ext/soap/is_soap_fault.php';
diff --git a/test/unit/SoapExtensionPolicyTest.php b/test/unit/SoapExtensionPolicyTest.php
index 670ce41411..966743f09c 100644
--- a/test/unit/SoapExtensionPolicyTest.php
+++ b/test/unit/SoapExtensionPolicyTest.php
@@ -35,5 +35,44 @@ public function testWithholdsOnReferenceWithoutHostSoap(): void
         self::assertFalse(
             ext\standard\VmReflection::classExists($runtime->vmContext, 'SoapFault')
         );
+        self::assertFalse(
+            ext\standard\VmReflection::classExists($runtime->vmContext, 'Soap\\Url')
+        );
+        self::assertFalse(
+            ext\standard\VmReflection::classExists($runtime->vmContext, 'Soap\\Sdl')
+        );
+        self::assertFalse(SoapExtensionPolicy::advertisesOpaqueUrlSdlTypes());
+    }
+
+    public function testSoapUrlSdlOnForwardProfile84(): void
+    {
+        $prev = getenv('PHP_COMPILER_PROFILE');
+        putenv('PHP_COMPILER_PROFILE=8.4');
+        try {
+            self::assertTrue(SoapExtensionPolicy::advertisesExtension());
+            self::assertTrue(SoapExtensionPolicy::advertisesOpaqueUrlSdlTypes());
+
+            $runtime = new Runtime();
+            self::assertTrue(
+                ext\standard\VmReflection::classExists($runtime->vmContext, 'Soap\\Url')
+            );
+            self::assertTrue(
+                ext\standard\VmReflection::classExists($runtime->vmContext, 'Soap\\Sdl')
+            );
+            $url = $runtime->vmContext->classes['soap\\url'] ?? null;
+            $sdl = $runtime->vmContext->classes['soap\\sdl'] ?? null;
+            self::assertNotNull($url);
+            self::assertNotNull($sdl);
+            self::assertTrue($url->isFinal);
+            self::assertTrue($url->isInternal);
+            self::assertTrue($sdl->isFinal);
+            self::assertTrue($sdl->isInternal);
+        } finally {
+            if (false === $prev || null === $prev) {
+                putenv('PHP_COMPILER_PROFILE');
+            } else {
+                putenv('PHP_COMPILER_PROFILE='.$prev);
+            }
+        }
     }
 }