diff --git a/modules/openapi-generator/src/main/resources/php-symfony/api_input_validation.mustache b/modules/openapi-generator/src/main/resources/php-symfony/api_input_validation.mustache
index a3482129b0e4..91b9f80bdf17 100644
--- a/modules/openapi-generator/src/main/resources/php-symfony/api_input_validation.mustache
+++ b/modules/openapi-generator/src/main/resources/php-symfony/api_input_validation.mustache
@@ -18,7 +18,10 @@
 {{#isContainer}}
     {{#items}}
         $asserts[] = new Assert\All([
-            new Assert\Type("{{dataType}}")
+            new Assert\Type("{{dataType}}"),
+            {{^isPrimitiveType}}
+            new Assert\Valid(),
+            {{/isPrimitiveType}}
         ]);
     {{/items}}
 {{/isContainer}}
@@ -36,6 +39,9 @@
     {{/isFile}}
     {{^isFile}}
         $asserts[] = new Assert\Type("{{dataType}}");
+        {{^isPrimitiveType}}
+        $asserts[] = new Assert\Valid();
+        {{/isPrimitiveType}}
     {{/isFile}}
     {{/isDateTime}}
     {{/isDate}}
diff --git a/samples/server/petstore/php-symfony/SymfonyBundle-php/Controller/PetController.php b/samples/server/petstore/php-symfony/SymfonyBundle-php/Controller/PetController.php
index b3141f14b99c..fba04f0ff3a9 100644
--- a/samples/server/petstore/php-symfony/SymfonyBundle-php/Controller/PetController.php
+++ b/samples/server/petstore/php-symfony/SymfonyBundle-php/Controller/PetController.php
@@ -98,6 +98,7 @@ public function addPetAction(Request $request)
         $asserts = [];
         $asserts[] = new Assert\NotNull();
         $asserts[] = new Assert\Type("OpenAPI\Server\Model\Pet");
+        $asserts[] = new Assert\Valid();
         $response = $this->validate($body, $asserts);
         if ($response instanceof Response) {
             return $response;
@@ -274,7 +275,7 @@ public function findPetsByStatusAction(Request $request)
             new Assert\Choice([ "available", "pending", "sold" ])
         ]);
         $asserts[] = new Assert\All([
-            new Assert\Type("string")
+            new Assert\Type("string"),
         ]);
         $response = $this->validate($status, $asserts);
         if ($response instanceof Response) {
@@ -362,7 +363,7 @@ public function findPetsByTagsAction(Request $request)
         $asserts = [];
         $asserts[] = new Assert\NotNull();
         $asserts[] = new Assert\All([
-            new Assert\Type("string")
+            new Assert\Type("string"),
         ]);
         $response = $this->validate($tags, $asserts);
         if ($response instanceof Response) {
@@ -546,6 +547,7 @@ public function updatePetAction(Request $request)
         $asserts = [];
         $asserts[] = new Assert\NotNull();
         $asserts[] = new Assert\Type("OpenAPI\Server\Model\Pet");
+        $asserts[] = new Assert\Valid();
         $response = $this->validate($body, $asserts);
         if ($response instanceof Response) {
             return $response;
diff --git a/samples/server/petstore/php-symfony/SymfonyBundle-php/Controller/StoreController.php b/samples/server/petstore/php-symfony/SymfonyBundle-php/Controller/StoreController.php
index dce68da494d5..41a9f697f62e 100644
--- a/samples/server/petstore/php-symfony/SymfonyBundle-php/Controller/StoreController.php
+++ b/samples/server/petstore/php-symfony/SymfonyBundle-php/Controller/StoreController.php
@@ -327,6 +327,7 @@ public function placeOrderAction(Request $request)
         $asserts = [];
         $asserts[] = new Assert\NotNull();
         $asserts[] = new Assert\Type("OpenAPI\Server\Model\Order");
+        $asserts[] = new Assert\Valid();
         $response = $this->validate($body, $asserts);
         if ($response instanceof Response) {
             return $response;
diff --git a/samples/server/petstore/php-symfony/SymfonyBundle-php/Controller/UserController.php b/samples/server/petstore/php-symfony/SymfonyBundle-php/Controller/UserController.php
index d2b32eb4af18..c72f28e2b6c2 100644
--- a/samples/server/petstore/php-symfony/SymfonyBundle-php/Controller/UserController.php
+++ b/samples/server/petstore/php-symfony/SymfonyBundle-php/Controller/UserController.php
@@ -94,6 +94,7 @@ public function createUserAction(Request $request)
         $asserts = [];
         $asserts[] = new Assert\NotNull();
         $asserts[] = new Assert\Type("OpenAPI\Server\Model\User");
+        $asserts[] = new Assert\Valid();
         $response = $this->validate($body, $asserts);
         if ($response instanceof Response) {
             return $response;
@@ -180,7 +181,8 @@ public function createUsersWithArrayInputAction(Request $request)
         $asserts = [];
         $asserts[] = new Assert\NotNull();
         $asserts[] = new Assert\All([
-            new Assert\Type("OpenAPI\Server\Model\User")
+            new Assert\Type("OpenAPI\Server\Model\User"),
+            new Assert\Valid(),
         ]);
         $response = $this->validate($body, $asserts);
         if ($response instanceof Response) {
@@ -268,7 +270,8 @@ public function createUsersWithListInputAction(Request $request)
         $asserts = [];
         $asserts[] = new Assert\NotNull();
         $asserts[] = new Assert\All([
-            new Assert\Type("OpenAPI\Server\Model\User")
+            new Assert\Type("OpenAPI\Server\Model\User"),
+            new Assert\Valid(),
         ]);
         $response = $this->validate($body, $asserts);
         if ($response instanceof Response) {
@@ -680,6 +683,7 @@ public function updateUserAction(Request $request, $username)
         $asserts = [];
         $asserts[] = new Assert\NotNull();
         $asserts[] = new Assert\Type("OpenAPI\Server\Model\User");
+        $asserts[] = new Assert\Valid();
         $response = $this->validate($body, $asserts);
         if ($response instanceof Response) {
             return $response;