diff --git a/bin/configs/php-symfony-SymfonyBundle-php.yaml b/bin/configs/php-symfony-SymfonyBundle-php.yaml
index c77a71f14b7..f7c6218a50f 100644
--- a/bin/configs/php-symfony-SymfonyBundle-php.yaml
+++ b/bin/configs/php-symfony-SymfonyBundle-php.yaml
@@ -1,4 +1,4 @@
 generatorName: php-symfony
 outputDir: samples/server/petstore/php-symfony/SymfonyBundle-php
-inputSpec: modules/openapi-generator/src/test/resources/2_0/petstore.yaml
+inputSpec: modules/openapi-generator/src/test/resources/3_0/petstore.yaml
 templateDir: modules/openapi-generator/src/main/resources/php-symfony
diff --git a/samples/server/petstore/php-symfony/SymfonyBundle-php/Api/PetApiInterface.php b/samples/server/petstore/php-symfony/SymfonyBundle-php/Api/PetApiInterface.php
index 0cf1ef82a85..4958426e7c8 100644
--- a/samples/server/petstore/php-symfony/SymfonyBundle-php/Api/PetApiInterface.php
+++ b/samples/server/petstore/php-symfony/SymfonyBundle-php/Api/PetApiInterface.php
@@ -52,6 +52,15 @@ interface PetApiInterface
      */
     public function setpetstore_auth($value);
 
+    /**
+     * Sets authentication method petstore_auth
+     *
+     * @param string $value Value of the petstore_auth authentication method.
+     *
+     * @return void
+     */
+    public function setpetstore_auth($value);
+
     /**
      * Sets authentication method api_key
      *
@@ -66,14 +75,14 @@ interface PetApiInterface
      *
      * Add a new pet to the store
      *
-     * @param  OpenAPI\Server\Model\Pet $body  Pet object that needs to be added to the store (required)
+     * @param  OpenAPI\Server\Model\Pet $pet  Pet object that needs to be added to the store (required)
      * @param  integer $responseCode     The HTTP response code to return
      * @param  array   $responseHeaders  Additional HTTP headers to return with the response ()
      *
-     * @return void
+     * @return OpenAPI\Server\Model\Pet
      *
      */
-    public function addPet(Pet $body, &$responseCode, array &$responseHeaders);
+    public function addPet(Pet $pet, &$responseCode, array &$responseHeaders);
 
     /**
      * Operation deletePet
@@ -137,14 +146,14 @@ interface PetApiInterface
      *
      * Update an existing pet
      *
-     * @param  OpenAPI\Server\Model\Pet $body  Pet object that needs to be added to the store (required)
+     * @param  OpenAPI\Server\Model\Pet $pet  Pet object that needs to be added to the store (required)
      * @param  integer $responseCode     The HTTP response code to return
      * @param  array   $responseHeaders  Additional HTTP headers to return with the response ()
      *
-     * @return void
+     * @return OpenAPI\Server\Model\Pet
      *
      */
-    public function updatePet(Pet $body, &$responseCode, array &$responseHeaders);
+    public function updatePet(Pet $pet, &$responseCode, array &$responseHeaders);
 
     /**
      * Operation updatePetWithForm
diff --git a/samples/server/petstore/php-symfony/SymfonyBundle-php/Api/StoreApiInterface.php b/samples/server/petstore/php-symfony/SymfonyBundle-php/Api/StoreApiInterface.php
index 3a7790362ab..cf9093ecf13 100644
--- a/samples/server/petstore/php-symfony/SymfonyBundle-php/Api/StoreApiInterface.php
+++ b/samples/server/petstore/php-symfony/SymfonyBundle-php/Api/StoreApiInterface.php
@@ -97,12 +97,12 @@ interface StoreApiInterface
      *
      * Place an order for a pet
      *
-     * @param  OpenAPI\Server\Model\Order $body  order placed for purchasing the pet (required)
+     * @param  OpenAPI\Server\Model\Order $order  order placed for purchasing the pet (required)
      * @param  integer $responseCode     The HTTP response code to return
      * @param  array   $responseHeaders  Additional HTTP headers to return with the response ()
      *
      * @return OpenAPI\Server\Model\Order
      *
      */
-    public function placeOrder(Order $body, &$responseCode, array &$responseHeaders);
+    public function placeOrder(Order $order, &$responseCode, array &$responseHeaders);
 }
diff --git a/samples/server/petstore/php-symfony/SymfonyBundle-php/Api/UserApiInterface.php b/samples/server/petstore/php-symfony/SymfonyBundle-php/Api/UserApiInterface.php
index 960c1b6f8cc..71a5cfac669 100644
--- a/samples/server/petstore/php-symfony/SymfonyBundle-php/Api/UserApiInterface.php
+++ b/samples/server/petstore/php-symfony/SymfonyBundle-php/Api/UserApiInterface.php
@@ -42,47 +42,56 @@ use OpenAPI\Server\Model\User;
 interface UserApiInterface
 {
 
+    /**
+     * Sets authentication method api_key
+     *
+     * @param string $value Value of the api_key authentication method.
+     *
+     * @return void
+     */
+    public function setapi_key($value);
+
     /**
      * Operation createUser
      *
      * Create user
      *
-     * @param  OpenAPI\Server\Model\User $body  Created user object (required)
+     * @param  OpenAPI\Server\Model\User $user  Created user object (required)
      * @param  integer $responseCode     The HTTP response code to return
      * @param  array   $responseHeaders  Additional HTTP headers to return with the response ()
      *
      * @return void
      *
      */
-    public function createUser(User $body, &$responseCode, array &$responseHeaders);
+    public function createUser(User $user, &$responseCode, array &$responseHeaders);
 
     /**
      * Operation createUsersWithArrayInput
      *
      * Creates list of users with given input array
      *
-     * @param  OpenAPI\Server\Model\User[] $body  List of user object (required)
+     * @param  OpenAPI\Server\Model\User[] $user  List of user object (required)
      * @param  integer $responseCode     The HTTP response code to return
      * @param  array   $responseHeaders  Additional HTTP headers to return with the response ()
      *
      * @return void
      *
      */
-    public function createUsersWithArrayInput(array $body, &$responseCode, array &$responseHeaders);
+    public function createUsersWithArrayInput(array $user, &$responseCode, array &$responseHeaders);
 
     /**
      * Operation createUsersWithListInput
      *
      * Creates list of users with given input array
      *
-     * @param  OpenAPI\Server\Model\User[] $body  List of user object (required)
+     * @param  OpenAPI\Server\Model\User[] $user  List of user object (required)
      * @param  integer $responseCode     The HTTP response code to return
      * @param  array   $responseHeaders  Additional HTTP headers to return with the response ()
      *
      * @return void
      *
      */
-    public function createUsersWithListInput(array $body, &$responseCode, array &$responseHeaders);
+    public function createUsersWithListInput(array $user, &$responseCode, array &$responseHeaders);
 
     /**
      * Operation deleteUser
@@ -146,12 +155,12 @@ interface UserApiInterface
      * Updated user
      *
      * @param  string $username  name that need to be deleted (required)
-     * @param  OpenAPI\Server\Model\User $body  Updated user object (required)
+     * @param  OpenAPI\Server\Model\User $user  Updated user object (required)
      * @param  integer $responseCode     The HTTP response code to return
      * @param  array   $responseHeaders  Additional HTTP headers to return with the response ()
      *
      * @return void
      *
      */
-    public function updateUser($username, User $body, &$responseCode, array &$responseHeaders);
+    public function updateUser($username, User $user, &$responseCode, array &$responseHeaders);
 }
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 ca07f62678d..a20c8b98a2b 100644
--- a/samples/server/petstore/php-symfony/SymfonyBundle-php/Controller/PetController.php
+++ b/samples/server/petstore/php-symfony/SymfonyBundle-php/Controller/PetController.php
@@ -67,20 +67,29 @@ class PetController extends Controller
             return new Response('', 415);
         }
 
+        // Figure out what data format to return to the client
+        $produces = ['application/xml', 'application/json'];
+        // Figure out what the client accepts
+        $clientAccepts = $request->headers->has('Accept')?$request->headers->get('Accept'):'*/*';
+        $responseFormat = $this->getOutputFormat($clientAccepts, $produces);
+        if ($responseFormat === null) {
+            return new Response('', 406);
+        }
+
         // Handle authentication
         // Authentication 'petstore_auth' required
         // Oauth required
         $securitypetstore_auth = $request->headers->get('authorization');
 
         // Read out all input parameter values into variables
-        $body = $request->getContent();
+        $pet = $request->getContent();
 
         // Use the default value if no value was provided
 
         // Deserialize the input values that needs it
         try {
             $inputFormat = $request->getMimeType($request->getContentType());
-            $body = $this->deserialize($body, 'OpenAPI\Server\Model\Pet', $inputFormat);
+            $pet = $this->deserialize($pet, 'OpenAPI\Server\Model\Pet', $inputFormat);
         } catch (SerializerRuntimeException $exception) {
             return $this->createBadRequestResponse($exception->getMessage());
         }
@@ -90,7 +99,7 @@ class PetController extends Controller
         $asserts[] = new Assert\NotNull();
         $asserts[] = new Assert\Type("OpenAPI\Server\Model\Pet");
         $asserts[] = new Assert\Valid();
-        $response = $this->validate($body, $asserts);
+        $response = $this->validate($pet, $asserts);
         if ($response instanceof Response) {
             return $response;
         }
@@ -103,26 +112,30 @@ class PetController extends Controller
             $handler->setpetstore_auth($securitypetstore_auth);
             
             // Make the call to the business logic
-            $responseCode = 204;
+            $responseCode = 200;
             $responseHeaders = [];
-            $result = $handler->addPet($body, $responseCode, $responseHeaders);
+            $result = $handler->addPet($pet, $responseCode, $responseHeaders);
 
             // Find default response message
             $message = '';
 
             // Find a more specific message, if available
             switch ($responseCode) {
+                case 200:
+                    $message = 'successful operation';
+                    break;
                 case 405:
                     $message = 'Invalid input';
                     break;
             }
 
             return new Response(
-                '',
+                $result !== null ?$this->serialize($result, $responseFormat):'',
                 $responseCode,
                 array_merge(
                     $responseHeaders,
                     [
+                        'Content-Type' => $responseFormat,
                         'X-OpenAPI-Message' => $message
                     ]
                 )
@@ -498,20 +511,29 @@ class PetController extends Controller
             return new Response('', 415);
         }
 
+        // Figure out what data format to return to the client
+        $produces = ['application/xml', 'application/json'];
+        // Figure out what the client accepts
+        $clientAccepts = $request->headers->has('Accept')?$request->headers->get('Accept'):'*/*';
+        $responseFormat = $this->getOutputFormat($clientAccepts, $produces);
+        if ($responseFormat === null) {
+            return new Response('', 406);
+        }
+
         // Handle authentication
         // Authentication 'petstore_auth' required
         // Oauth required
         $securitypetstore_auth = $request->headers->get('authorization');
 
         // Read out all input parameter values into variables
-        $body = $request->getContent();
+        $pet = $request->getContent();
 
         // Use the default value if no value was provided
 
         // Deserialize the input values that needs it
         try {
             $inputFormat = $request->getMimeType($request->getContentType());
-            $body = $this->deserialize($body, 'OpenAPI\Server\Model\Pet', $inputFormat);
+            $pet = $this->deserialize($pet, 'OpenAPI\Server\Model\Pet', $inputFormat);
         } catch (SerializerRuntimeException $exception) {
             return $this->createBadRequestResponse($exception->getMessage());
         }
@@ -521,7 +543,7 @@ class PetController extends Controller
         $asserts[] = new Assert\NotNull();
         $asserts[] = new Assert\Type("OpenAPI\Server\Model\Pet");
         $asserts[] = new Assert\Valid();
-        $response = $this->validate($body, $asserts);
+        $response = $this->validate($pet, $asserts);
         if ($response instanceof Response) {
             return $response;
         }
@@ -534,15 +556,18 @@ class PetController extends Controller
             $handler->setpetstore_auth($securitypetstore_auth);
             
             // Make the call to the business logic
-            $responseCode = 204;
+            $responseCode = 200;
             $responseHeaders = [];
-            $result = $handler->updatePet($body, $responseCode, $responseHeaders);
+            $result = $handler->updatePet($pet, $responseCode, $responseHeaders);
 
             // Find default response message
             $message = '';
 
             // Find a more specific message, if available
             switch ($responseCode) {
+                case 200:
+                    $message = 'successful operation';
+                    break;
                 case 400:
                     $message = 'Invalid ID supplied';
                     break;
@@ -555,11 +580,12 @@ class PetController extends Controller
             }
 
             return new Response(
-                '',
+                $result !== null ?$this->serialize($result, $responseFormat):'',
                 $responseCode,
                 array_merge(
                     $responseHeaders,
                     [
+                        'Content-Type' => $responseFormat,
                         'X-OpenAPI-Message' => $message
                     ]
                 )
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 d6e9e33bb36..b0bc06eafa6 100644
--- a/samples/server/petstore/php-symfony/SymfonyBundle-php/Controller/StoreController.php
+++ b/samples/server/petstore/php-symfony/SymfonyBundle-php/Controller/StoreController.php
@@ -283,7 +283,7 @@ class StoreController extends Controller
     public function placeOrderAction(Request $request)
     {
         // Make sure that the client is providing something that we can consume
-        $consumes = [];
+        $consumes = ['application/json'];
         if (!static::isContentTypeAllowed($request, $consumes)) {
             // We can't consume the content that the client is sending us
             return new Response('', 415);
@@ -301,14 +301,14 @@ class StoreController extends Controller
         // Handle authentication
 
         // Read out all input parameter values into variables
-        $body = $request->getContent();
+        $order = $request->getContent();
 
         // Use the default value if no value was provided
 
         // Deserialize the input values that needs it
         try {
             $inputFormat = $request->getMimeType($request->getContentType());
-            $body = $this->deserialize($body, 'OpenAPI\Server\Model\Order', $inputFormat);
+            $order = $this->deserialize($order, 'OpenAPI\Server\Model\Order', $inputFormat);
         } catch (SerializerRuntimeException $exception) {
             return $this->createBadRequestResponse($exception->getMessage());
         }
@@ -318,7 +318,7 @@ class StoreController extends Controller
         $asserts[] = new Assert\NotNull();
         $asserts[] = new Assert\Type("OpenAPI\Server\Model\Order");
         $asserts[] = new Assert\Valid();
-        $response = $this->validate($body, $asserts);
+        $response = $this->validate($order, $asserts);
         if ($response instanceof Response) {
             return $response;
         }
@@ -331,7 +331,7 @@ class StoreController extends Controller
             // Make the call to the business logic
             $responseCode = 200;
             $responseHeaders = [];
-            $result = $handler->placeOrder($body, $responseCode, $responseHeaders);
+            $result = $handler->placeOrder($order, $responseCode, $responseHeaders);
 
             // Find default response message
             $message = '';
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 52af362ae34..b285ae5c23d 100644
--- a/samples/server/petstore/php-symfony/SymfonyBundle-php/Controller/UserController.php
+++ b/samples/server/petstore/php-symfony/SymfonyBundle-php/Controller/UserController.php
@@ -60,23 +60,26 @@ class UserController extends Controller
     public function createUserAction(Request $request)
     {
         // Make sure that the client is providing something that we can consume
-        $consumes = [];
+        $consumes = ['application/json'];
         if (!static::isContentTypeAllowed($request, $consumes)) {
             // We can't consume the content that the client is sending us
             return new Response('', 415);
         }
 
         // Handle authentication
+        // Authentication 'api_key' required
+        // Set key with prefix in header
+        $securityapi_key = $request->headers->get('api_key');
 
         // Read out all input parameter values into variables
-        $body = $request->getContent();
+        $user = $request->getContent();
 
         // Use the default value if no value was provided
 
         // Deserialize the input values that needs it
         try {
             $inputFormat = $request->getMimeType($request->getContentType());
-            $body = $this->deserialize($body, 'OpenAPI\Server\Model\User', $inputFormat);
+            $user = $this->deserialize($user, 'OpenAPI\Server\Model\User', $inputFormat);
         } catch (SerializerRuntimeException $exception) {
             return $this->createBadRequestResponse($exception->getMessage());
         }
@@ -86,7 +89,7 @@ class UserController extends Controller
         $asserts[] = new Assert\NotNull();
         $asserts[] = new Assert\Type("OpenAPI\Server\Model\User");
         $asserts[] = new Assert\Valid();
-        $response = $this->validate($body, $asserts);
+        $response = $this->validate($user, $asserts);
         if ($response instanceof Response) {
             return $response;
         }
@@ -95,11 +98,13 @@ class UserController extends Controller
         try {
             $handler = $this->getApiHandler();
 
+            // Set authentication method 'api_key'
+            $handler->setapi_key($securityapi_key);
             
             // Make the call to the business logic
             $responseCode = 204;
             $responseHeaders = [];
-            $result = $handler->createUser($body, $responseCode, $responseHeaders);
+            $result = $handler->createUser($user, $responseCode, $responseHeaders);
 
             // Find default response message
             $message = 'successful operation';
@@ -137,23 +142,26 @@ class UserController extends Controller
     public function createUsersWithArrayInputAction(Request $request)
     {
         // Make sure that the client is providing something that we can consume
-        $consumes = [];
+        $consumes = ['application/json'];
         if (!static::isContentTypeAllowed($request, $consumes)) {
             // We can't consume the content that the client is sending us
             return new Response('', 415);
         }
 
         // Handle authentication
+        // Authentication 'api_key' required
+        // Set key with prefix in header
+        $securityapi_key = $request->headers->get('api_key');
 
         // Read out all input parameter values into variables
-        $body = $request->getContent();
+        $user = $request->getContent();
 
         // Use the default value if no value was provided
 
         // Deserialize the input values that needs it
         try {
             $inputFormat = $request->getMimeType($request->getContentType());
-            $body = $this->deserialize($body, 'array<OpenAPI\Server\Model\User>', $inputFormat);
+            $user = $this->deserialize($user, 'array<OpenAPI\Server\Model\User>', $inputFormat);
         } catch (SerializerRuntimeException $exception) {
             return $this->createBadRequestResponse($exception->getMessage());
         }
@@ -165,7 +173,7 @@ class UserController extends Controller
             new Assert\Type("OpenAPI\Server\Model\User"),
         ]);
         $asserts[] = new Assert\Valid();
-        $response = $this->validate($body, $asserts);
+        $response = $this->validate($user, $asserts);
         if ($response instanceof Response) {
             return $response;
         }
@@ -174,11 +182,13 @@ class UserController extends Controller
         try {
             $handler = $this->getApiHandler();
 
+            // Set authentication method 'api_key'
+            $handler->setapi_key($securityapi_key);
             
             // Make the call to the business logic
             $responseCode = 204;
             $responseHeaders = [];
-            $result = $handler->createUsersWithArrayInput($body, $responseCode, $responseHeaders);
+            $result = $handler->createUsersWithArrayInput($user, $responseCode, $responseHeaders);
 
             // Find default response message
             $message = 'successful operation';
@@ -216,23 +226,26 @@ class UserController extends Controller
     public function createUsersWithListInputAction(Request $request)
     {
         // Make sure that the client is providing something that we can consume
-        $consumes = [];
+        $consumes = ['application/json'];
         if (!static::isContentTypeAllowed($request, $consumes)) {
             // We can't consume the content that the client is sending us
             return new Response('', 415);
         }
 
         // Handle authentication
+        // Authentication 'api_key' required
+        // Set key with prefix in header
+        $securityapi_key = $request->headers->get('api_key');
 
         // Read out all input parameter values into variables
-        $body = $request->getContent();
+        $user = $request->getContent();
 
         // Use the default value if no value was provided
 
         // Deserialize the input values that needs it
         try {
             $inputFormat = $request->getMimeType($request->getContentType());
-            $body = $this->deserialize($body, 'array<OpenAPI\Server\Model\User>', $inputFormat);
+            $user = $this->deserialize($user, 'array<OpenAPI\Server\Model\User>', $inputFormat);
         } catch (SerializerRuntimeException $exception) {
             return $this->createBadRequestResponse($exception->getMessage());
         }
@@ -244,7 +257,7 @@ class UserController extends Controller
             new Assert\Type("OpenAPI\Server\Model\User"),
         ]);
         $asserts[] = new Assert\Valid();
-        $response = $this->validate($body, $asserts);
+        $response = $this->validate($user, $asserts);
         if ($response instanceof Response) {
             return $response;
         }
@@ -253,11 +266,13 @@ class UserController extends Controller
         try {
             $handler = $this->getApiHandler();
 
+            // Set authentication method 'api_key'
+            $handler->setapi_key($securityapi_key);
             
             // Make the call to the business logic
             $responseCode = 204;
             $responseHeaders = [];
-            $result = $handler->createUsersWithListInput($body, $responseCode, $responseHeaders);
+            $result = $handler->createUsersWithListInput($user, $responseCode, $responseHeaders);
 
             // Find default response message
             $message = 'successful operation';
@@ -295,6 +310,9 @@ class UserController extends Controller
     public function deleteUserAction(Request $request, $username)
     {
         // Handle authentication
+        // Authentication 'api_key' required
+        // Set key with prefix in header
+        $securityapi_key = $request->headers->get('api_key');
 
         // Read out all input parameter values into variables
 
@@ -320,6 +338,8 @@ class UserController extends Controller
         try {
             $handler = $this->getApiHandler();
 
+            // Set authentication method 'api_key'
+            $handler->setapi_key($securityapi_key);
             
             // Make the call to the business logic
             $responseCode = 204;
@@ -476,6 +496,7 @@ class UserController extends Controller
         $asserts = [];
         $asserts[] = new Assert\NotNull();
         $asserts[] = new Assert\Type("string");
+        $asserts[] = new Assert\Regex("/^[a-zA-Z0-9]+[a-zA-Z0-9\\.\\-_]*[a-zA-Z0-9]+$/");
         $response = $this->validate($username, $asserts);
         if ($response instanceof Response) {
             return $response;
@@ -538,6 +559,9 @@ class UserController extends Controller
     public function logoutUserAction(Request $request)
     {
         // Handle authentication
+        // Authentication 'api_key' required
+        // Set key with prefix in header
+        $securityapi_key = $request->headers->get('api_key');
 
         // Read out all input parameter values into variables
 
@@ -549,6 +573,8 @@ class UserController extends Controller
         try {
             $handler = $this->getApiHandler();
 
+            // Set authentication method 'api_key'
+            $handler->setapi_key($securityapi_key);
             
             // Make the call to the business logic
             $responseCode = 204;
@@ -591,16 +617,19 @@ class UserController extends Controller
     public function updateUserAction(Request $request, $username)
     {
         // Make sure that the client is providing something that we can consume
-        $consumes = [];
+        $consumes = ['application/json'];
         if (!static::isContentTypeAllowed($request, $consumes)) {
             // We can't consume the content that the client is sending us
             return new Response('', 415);
         }
 
         // Handle authentication
+        // Authentication 'api_key' required
+        // Set key with prefix in header
+        $securityapi_key = $request->headers->get('api_key');
 
         // Read out all input parameter values into variables
-        $body = $request->getContent();
+        $user = $request->getContent();
 
         // Use the default value if no value was provided
 
@@ -608,7 +637,7 @@ class UserController extends Controller
         try {
             $username = $this->deserialize($username, 'string', 'string');
             $inputFormat = $request->getMimeType($request->getContentType());
-            $body = $this->deserialize($body, 'OpenAPI\Server\Model\User', $inputFormat);
+            $user = $this->deserialize($user, 'OpenAPI\Server\Model\User', $inputFormat);
         } catch (SerializerRuntimeException $exception) {
             return $this->createBadRequestResponse($exception->getMessage());
         }
@@ -625,7 +654,7 @@ class UserController extends Controller
         $asserts[] = new Assert\NotNull();
         $asserts[] = new Assert\Type("OpenAPI\Server\Model\User");
         $asserts[] = new Assert\Valid();
-        $response = $this->validate($body, $asserts);
+        $response = $this->validate($user, $asserts);
         if ($response instanceof Response) {
             return $response;
         }
@@ -634,11 +663,13 @@ class UserController extends Controller
         try {
             $handler = $this->getApiHandler();
 
+            // Set authentication method 'api_key'
+            $handler->setapi_key($securityapi_key);
             
             // Make the call to the business logic
             $responseCode = 204;
             $responseHeaders = [];
-            $result = $handler->updateUser($username, $body, $responseCode, $responseHeaders);
+            $result = $handler->updateUser($username, $user, $responseCode, $responseHeaders);
 
             // Find default response message
             $message = '';
diff --git a/samples/server/petstore/php-symfony/SymfonyBundle-php/Model/Category.php b/samples/server/petstore/php-symfony/SymfonyBundle-php/Model/Category.php
index 8964e71b66a..7ee222ced8d 100644
--- a/samples/server/petstore/php-symfony/SymfonyBundle-php/Model/Category.php
+++ b/samples/server/petstore/php-symfony/SymfonyBundle-php/Model/Category.php
@@ -56,6 +56,7 @@ class Category
      * @SerializedName("name")
      * @Assert\Type("string")
      * @Type("string")
+     * @Assert\Regex("/^[a-zA-Z0-9]+[a-zA-Z0-9\\.\\-_]*[a-zA-Z0-9]+$/")
      */
     protected $name;
 
diff --git a/samples/server/petstore/php-symfony/SymfonyBundle-php/README.md b/samples/server/petstore/php-symfony/SymfonyBundle-php/README.md
index 27ebd280cd1..b1aab117e18 100644
--- a/samples/server/petstore/php-symfony/SymfonyBundle-php/README.md
+++ b/samples/server/petstore/php-symfony/SymfonyBundle-php/README.md
@@ -93,7 +93,7 @@ class PetApi implements PetApiInterface // An interface is autogenerated
     /**
      * Implementation of PetApiInterface#addPet
      */
-    public function addPet(Pet $body)
+    public function addPet(Pet $pet)
     {
         // Implement the operation ...
     }
diff --git a/samples/server/petstore/php-symfony/SymfonyBundle-php/Resources/docs/Api/PetApiInterface.md b/samples/server/petstore/php-symfony/SymfonyBundle-php/Resources/docs/Api/PetApiInterface.md
index 41b9776c01c..01bd0ee88ae 100644
--- a/samples/server/petstore/php-symfony/SymfonyBundle-php/Resources/docs/Api/PetApiInterface.md
+++ b/samples/server/petstore/php-symfony/SymfonyBundle-php/Resources/docs/Api/PetApiInterface.md
@@ -27,7 +27,7 @@ services:
 ```
 
 ## **addPet**
-> addPet($body)
+> OpenAPI\Server\Model\Pet addPet($pet)
 
 Add a new pet to the store
 
@@ -56,7 +56,7 @@ class PetApi implements PetApiInterface
     /**
      * Implementation of PetApiInterface#addPet
      */
-    public function addPet(Pet $body)
+    public function addPet(Pet $pet)
     {
         // Implement the operation ...
     }
@@ -69,11 +69,11 @@ class PetApi implements PetApiInterface
 
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
- **body** | [**OpenAPI\Server\Model\Pet**](../Model/Pet.md)| Pet object that needs to be added to the store |
+ **pet** | [**OpenAPI\Server\Model\Pet**](../Model/Pet.md)| Pet object that needs to be added to the store |
 
 ### Return type
 
-void (empty response body)
+[**OpenAPI\Server\Model\Pet**](../Model/Pet.md)
 
 ### Authorization
 
@@ -82,7 +82,7 @@ void (empty response body)
 ### HTTP request headers
 
  - **Content-Type**: application/json, application/xml
- - **Accept**: Not defined
+ - **Accept**: application/xml, application/json
 
 [[Back to top]](#) [[Back to API list]](../../README.md#documentation-for-api-endpoints) [[Back to Model list]](../../README.md#documentation-for-models) [[Back to README]](../../README.md)
 
@@ -334,7 +334,7 @@ Name | Type | Description  | Notes
 [[Back to top]](#) [[Back to API list]](../../README.md#documentation-for-api-endpoints) [[Back to Model list]](../../README.md#documentation-for-models) [[Back to README]](../../README.md)
 
 ## **updatePet**
-> updatePet($body)
+> OpenAPI\Server\Model\Pet updatePet($pet)
 
 Update an existing pet
 
@@ -363,7 +363,7 @@ class PetApi implements PetApiInterface
     /**
      * Implementation of PetApiInterface#updatePet
      */
-    public function updatePet(Pet $body)
+    public function updatePet(Pet $pet)
     {
         // Implement the operation ...
     }
@@ -376,11 +376,11 @@ class PetApi implements PetApiInterface
 
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
- **body** | [**OpenAPI\Server\Model\Pet**](../Model/Pet.md)| Pet object that needs to be added to the store |
+ **pet** | [**OpenAPI\Server\Model\Pet**](../Model/Pet.md)| Pet object that needs to be added to the store |
 
 ### Return type
 
-void (empty response body)
+[**OpenAPI\Server\Model\Pet**](../Model/Pet.md)
 
 ### Authorization
 
@@ -389,7 +389,7 @@ void (empty response body)
 ### HTTP request headers
 
  - **Content-Type**: application/json, application/xml
- - **Accept**: Not defined
+ - **Accept**: application/xml, application/json
 
 [[Back to top]](#) [[Back to API list]](../../README.md#documentation-for-api-endpoints) [[Back to Model list]](../../README.md#documentation-for-models) [[Back to README]](../../README.md)
 
diff --git a/samples/server/petstore/php-symfony/SymfonyBundle-php/Resources/docs/Api/StoreApiInterface.md b/samples/server/petstore/php-symfony/SymfonyBundle-php/Resources/docs/Api/StoreApiInterface.md
index 0a1f4154f6d..3d3e3b18c3e 100644
--- a/samples/server/petstore/php-symfony/SymfonyBundle-php/Resources/docs/Api/StoreApiInterface.md
+++ b/samples/server/petstore/php-symfony/SymfonyBundle-php/Resources/docs/Api/StoreApiInterface.md
@@ -190,7 +190,7 @@ No authorization required
 [[Back to top]](#) [[Back to API list]](../../README.md#documentation-for-api-endpoints) [[Back to Model list]](../../README.md#documentation-for-models) [[Back to README]](../../README.md)
 
 ## **placeOrder**
-> OpenAPI\Server\Model\Order placeOrder($body)
+> OpenAPI\Server\Model\Order placeOrder($order)
 
 Place an order for a pet
 
@@ -211,7 +211,7 @@ class StoreApi implements StoreApiInterface
     /**
      * Implementation of StoreApiInterface#placeOrder
      */
-    public function placeOrder(Order $body)
+    public function placeOrder(Order $order)
     {
         // Implement the operation ...
     }
@@ -224,7 +224,7 @@ class StoreApi implements StoreApiInterface
 
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
- **body** | [**OpenAPI\Server\Model\Order**](../Model/Order.md)| order placed for purchasing the pet |
+ **order** | [**OpenAPI\Server\Model\Order**](../Model/Order.md)| order placed for purchasing the pet |
 
 ### Return type
 
@@ -236,7 +236,7 @@ No authorization required
 
 ### HTTP request headers
 
- - **Content-Type**: Not defined
+ - **Content-Type**: application/json
  - **Accept**: application/xml, application/json
 
 [[Back to top]](#) [[Back to API list]](../../README.md#documentation-for-api-endpoints) [[Back to Model list]](../../README.md#documentation-for-models) [[Back to README]](../../README.md)
diff --git a/samples/server/petstore/php-symfony/SymfonyBundle-php/Resources/docs/Api/UserApiInterface.md b/samples/server/petstore/php-symfony/SymfonyBundle-php/Resources/docs/Api/UserApiInterface.md
index 571e9dcbf29..c00ce7309a8 100644
--- a/samples/server/petstore/php-symfony/SymfonyBundle-php/Resources/docs/Api/UserApiInterface.md
+++ b/samples/server/petstore/php-symfony/SymfonyBundle-php/Resources/docs/Api/UserApiInterface.md
@@ -27,7 +27,7 @@ services:
 ```
 
 ## **createUser**
-> createUser($body)
+> createUser($user)
 
 Create user
 
@@ -45,12 +45,20 @@ use OpenAPI\Server\Api\UserApiInterface;
 class UserApi implements UserApiInterface
 {
 
+    /**
+     * Configure API key authorization: api_key
+     */
+    public function setapi_key($apiKey)
+    {
+        // Retrieve logged in user from $apiKey ...
+    }
+
     // ...
 
     /**
      * Implementation of UserApiInterface#createUser
      */
-    public function createUser(User $body)
+    public function createUser(User $user)
     {
         // Implement the operation ...
     }
@@ -63,7 +71,7 @@ class UserApi implements UserApiInterface
 
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
- **body** | [**OpenAPI\Server\Model\User**](../Model/User.md)| Created user object |
+ **user** | [**OpenAPI\Server\Model\User**](../Model/User.md)| Created user object |
 
 ### Return type
 
@@ -71,17 +79,17 @@ void (empty response body)
 
 ### Authorization
 
-No authorization required
+[api_key](../../README.md#api_key)
 
 ### HTTP request headers
 
- - **Content-Type**: Not defined
+ - **Content-Type**: application/json
  - **Accept**: Not defined
 
 [[Back to top]](#) [[Back to API list]](../../README.md#documentation-for-api-endpoints) [[Back to Model list]](../../README.md#documentation-for-models) [[Back to README]](../../README.md)
 
 ## **createUsersWithArrayInput**
-> createUsersWithArrayInput($body)
+> createUsersWithArrayInput($user)
 
 Creates list of users with given input array
 
@@ -97,12 +105,20 @@ use OpenAPI\Server\Api\UserApiInterface;
 class UserApi implements UserApiInterface
 {
 
+    /**
+     * Configure API key authorization: api_key
+     */
+    public function setapi_key($apiKey)
+    {
+        // Retrieve logged in user from $apiKey ...
+    }
+
     // ...
 
     /**
      * Implementation of UserApiInterface#createUsersWithArrayInput
      */
-    public function createUsersWithArrayInput(array $body)
+    public function createUsersWithArrayInput(array $user)
     {
         // Implement the operation ...
     }
@@ -115,7 +131,7 @@ class UserApi implements UserApiInterface
 
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
- **body** | [**OpenAPI\Server\Model\User**](../Model/User.md)| List of user object |
+ **user** | [**OpenAPI\Server\Model\User**](../Model/User.md)| List of user object |
 
 ### Return type
 
@@ -123,17 +139,17 @@ void (empty response body)
 
 ### Authorization
 
-No authorization required
+[api_key](../../README.md#api_key)
 
 ### HTTP request headers
 
- - **Content-Type**: Not defined
+ - **Content-Type**: application/json
  - **Accept**: Not defined
 
 [[Back to top]](#) [[Back to API list]](../../README.md#documentation-for-api-endpoints) [[Back to Model list]](../../README.md#documentation-for-models) [[Back to README]](../../README.md)
 
 ## **createUsersWithListInput**
-> createUsersWithListInput($body)
+> createUsersWithListInput($user)
 
 Creates list of users with given input array
 
@@ -149,12 +165,20 @@ use OpenAPI\Server\Api\UserApiInterface;
 class UserApi implements UserApiInterface
 {
 
+    /**
+     * Configure API key authorization: api_key
+     */
+    public function setapi_key($apiKey)
+    {
+        // Retrieve logged in user from $apiKey ...
+    }
+
     // ...
 
     /**
      * Implementation of UserApiInterface#createUsersWithListInput
      */
-    public function createUsersWithListInput(array $body)
+    public function createUsersWithListInput(array $user)
     {
         // Implement the operation ...
     }
@@ -167,7 +191,7 @@ class UserApi implements UserApiInterface
 
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
- **body** | [**OpenAPI\Server\Model\User**](../Model/User.md)| List of user object |
+ **user** | [**OpenAPI\Server\Model\User**](../Model/User.md)| List of user object |
 
 ### Return type
 
@@ -175,11 +199,11 @@ void (empty response body)
 
 ### Authorization
 
-No authorization required
+[api_key](../../README.md#api_key)
 
 ### HTTP request headers
 
- - **Content-Type**: Not defined
+ - **Content-Type**: application/json
  - **Accept**: Not defined
 
 [[Back to top]](#) [[Back to API list]](../../README.md#documentation-for-api-endpoints) [[Back to Model list]](../../README.md#documentation-for-models) [[Back to README]](../../README.md)
@@ -203,6 +227,14 @@ use OpenAPI\Server\Api\UserApiInterface;
 class UserApi implements UserApiInterface
 {
 
+    /**
+     * Configure API key authorization: api_key
+     */
+    public function setapi_key($apiKey)
+    {
+        // Retrieve logged in user from $apiKey ...
+    }
+
     // ...
 
     /**
@@ -229,7 +261,7 @@ void (empty response body)
 
 ### Authorization
 
-No authorization required
+[api_key](../../README.md#api_key)
 
 ### HTTP request headers
 
@@ -360,6 +392,14 @@ use OpenAPI\Server\Api\UserApiInterface;
 class UserApi implements UserApiInterface
 {
 
+    /**
+     * Configure API key authorization: api_key
+     */
+    public function setapi_key($apiKey)
+    {
+        // Retrieve logged in user from $apiKey ...
+    }
+
     // ...
 
     /**
@@ -383,7 +423,7 @@ void (empty response body)
 
 ### Authorization
 
-No authorization required
+[api_key](../../README.md#api_key)
 
 ### HTTP request headers
 
@@ -393,7 +433,7 @@ No authorization required
 [[Back to top]](#) [[Back to API list]](../../README.md#documentation-for-api-endpoints) [[Back to Model list]](../../README.md#documentation-for-models) [[Back to README]](../../README.md)
 
 ## **updateUser**
-> updateUser($username, $body)
+> updateUser($username, $user)
 
 Updated user
 
@@ -411,12 +451,20 @@ use OpenAPI\Server\Api\UserApiInterface;
 class UserApi implements UserApiInterface
 {
 
+    /**
+     * Configure API key authorization: api_key
+     */
+    public function setapi_key($apiKey)
+    {
+        // Retrieve logged in user from $apiKey ...
+    }
+
     // ...
 
     /**
      * Implementation of UserApiInterface#updateUser
      */
-    public function updateUser($username, User $body)
+    public function updateUser($username, User $user)
     {
         // Implement the operation ...
     }
@@ -430,7 +478,7 @@ class UserApi implements UserApiInterface
 Name | Type | Description  | Notes
 ------------- | ------------- | ------------- | -------------
  **username** | **string**| name that need to be deleted |
- **body** | [**OpenAPI\Server\Model\User**](../Model/User.md)| Updated user object |
+ **user** | [**OpenAPI\Server\Model\User**](../Model/User.md)| Updated user object |
 
 ### Return type
 
@@ -438,11 +486,11 @@ void (empty response body)
 
 ### Authorization
 
-No authorization required
+[api_key](../../README.md#api_key)
 
 ### HTTP request headers
 
- - **Content-Type**: Not defined
+ - **Content-Type**: application/json
  - **Accept**: Not defined
 
 [[Back to top]](#) [[Back to API list]](../../README.md#documentation-for-api-endpoints) [[Back to Model list]](../../README.md#documentation-for-models) [[Back to README]](../../README.md)