diff --git a/modules/swagger-codegen/src/main/resources/php/partial_header.mustache b/modules/swagger-codegen/src/main/resources/php/partial_header.mustache
index dafd3b3f35f..4cf2337cace 100644
--- a/modules/swagger-codegen/src/main/resources/php/partial_header.mustache
+++ b/modules/swagger-codegen/src/main/resources/php/partial_header.mustache
@@ -10,4 +10,5 @@
  * {{#version}}OpenAPI spec version: {{{version}}}{{/version}}
  * {{#infoEmail}}Contact: {{{infoEmail}}}{{/infoEmail}}
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: {{{generatorVersion}}}
  */
diff --git a/samples/client/petstore-security-test/php/SwaggerClient-php/git_push.sh b/samples/client/petstore-security-test/php/SwaggerClient-php/git_push.sh
index 792320114fb..160f6f21399 100644
--- a/samples/client/petstore-security-test/php/SwaggerClient-php/git_push.sh
+++ b/samples/client/petstore-security-test/php/SwaggerClient-php/git_push.sh
@@ -36,7 +36,7 @@ git_remote=`git remote`
 if [ "$git_remote" = "" ]; then # git remote not defined
 
     if [ "$GIT_TOKEN" = "" ]; then
-        echo "[INFO] \$GIT_TOKEN (environment variable) is not set. Using the git crediential in your environment."
+        echo "[INFO] \$GIT_TOKEN (environment variable) is not set. Using the git credential in your environment."
         git remote add origin https://github.com/${git_user_id}/${git_repo_id}.git
     else
         git remote add origin https://${git_user_id}:${GIT_TOKEN}@github.com/${git_user_id}/${git_repo_id}.git
diff --git a/samples/client/petstore-security-test/php/SwaggerClient-php/lib/Api/FakeApi.php b/samples/client/petstore-security-test/php/SwaggerClient-php/lib/Api/FakeApi.php
index bf65cbac5d0..6ef959b5ebf 100644
--- a/samples/client/petstore-security-test/php/SwaggerClient-php/lib/Api/FakeApi.php
+++ b/samples/client/petstore-security-test/php/SwaggerClient-php/lib/Api/FakeApi.php
@@ -17,6 +17,7 @@
  * OpenAPI spec version: 1.0.0 *_/ ' \" =end -- \\r\\n \\n \\r
  * Contact: apiteam@swagger.io *_/ ' \" =end -- \\r\\n \\n \\r
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
@@ -121,7 +122,8 @@ class FakeApi
                 throw new ApiException(
                     "[{$e->getCode()}] {$e->getMessage()}",
                     $e->getCode(),
-                    $e->getResponse() ? $e->getResponse()->getHeaders() : null
+                    $e->getResponse() ? $e->getResponse()->getHeaders() : null,
+                    $e->getResponse()->getBody()->getContents()
                 );
             }
 
diff --git a/samples/client/petstore-security-test/php/SwaggerClient-php/lib/ApiException.php b/samples/client/petstore-security-test/php/SwaggerClient-php/lib/ApiException.php
index b12b72fe296..108ad687c60 100644
--- a/samples/client/petstore-security-test/php/SwaggerClient-php/lib/ApiException.php
+++ b/samples/client/petstore-security-test/php/SwaggerClient-php/lib/ApiException.php
@@ -17,6 +17,7 @@
  * OpenAPI spec version: 1.0.0 *_/ ' \" =end -- \\r\\n \\n \\r
  * Contact: apiteam@swagger.io *_/ ' \" =end -- \\r\\n \\n \\r
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore-security-test/php/SwaggerClient-php/lib/Configuration.php b/samples/client/petstore-security-test/php/SwaggerClient-php/lib/Configuration.php
index 3fd2131e3da..0d34cfd15a4 100644
--- a/samples/client/petstore-security-test/php/SwaggerClient-php/lib/Configuration.php
+++ b/samples/client/petstore-security-test/php/SwaggerClient-php/lib/Configuration.php
@@ -17,6 +17,7 @@
  * OpenAPI spec version: 1.0.0 *_/ ' \" =end -- \\r\\n \\n \\r
  * Contact: apiteam@swagger.io *_/ ' \" =end -- \\r\\n \\n \\r
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore-security-test/php/SwaggerClient-php/lib/HeaderSelector.php b/samples/client/petstore-security-test/php/SwaggerClient-php/lib/HeaderSelector.php
index cd0ee96168b..5252eb2b99b 100644
--- a/samples/client/petstore-security-test/php/SwaggerClient-php/lib/HeaderSelector.php
+++ b/samples/client/petstore-security-test/php/SwaggerClient-php/lib/HeaderSelector.php
@@ -17,6 +17,7 @@
  * OpenAPI spec version: 1.0.0 *_/ ' \" =end -- \\r\\n \\n \\r
  * Contact: apiteam@swagger.io *_/ ' \" =end -- \\r\\n \\n \\r
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore-security-test/php/SwaggerClient-php/lib/Model/ModelInterface.php b/samples/client/petstore-security-test/php/SwaggerClient-php/lib/Model/ModelInterface.php
index eaad2cf0a95..e9f2f391535 100644
--- a/samples/client/petstore-security-test/php/SwaggerClient-php/lib/Model/ModelInterface.php
+++ b/samples/client/petstore-security-test/php/SwaggerClient-php/lib/Model/ModelInterface.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0 *_/ ' \" =end -- \\r\\n \\n \\r
  * Contact: apiteam@swagger.io *_/ ' \" =end -- \\r\\n \\n \\r
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore-security-test/php/SwaggerClient-php/lib/Model/ModelReturn.php b/samples/client/petstore-security-test/php/SwaggerClient-php/lib/Model/ModelReturn.php
index a2038fd14c4..04844965614 100644
--- a/samples/client/petstore-security-test/php/SwaggerClient-php/lib/Model/ModelReturn.php
+++ b/samples/client/petstore-security-test/php/SwaggerClient-php/lib/Model/ModelReturn.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0 *_/ ' \" =end -- \\r\\n \\n \\r
  * Contact: apiteam@swagger.io *_/ ' \" =end -- \\r\\n \\n \\r
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore-security-test/php/SwaggerClient-php/lib/ObjectSerializer.php b/samples/client/petstore-security-test/php/SwaggerClient-php/lib/ObjectSerializer.php
index 99fab6e2059..4fcf557ae5a 100644
--- a/samples/client/petstore-security-test/php/SwaggerClient-php/lib/ObjectSerializer.php
+++ b/samples/client/petstore-security-test/php/SwaggerClient-php/lib/ObjectSerializer.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0 *_/ ' \" =end -- \\r\\n \\n \\r
  * Contact: apiteam@swagger.io *_/ ' \" =end -- \\r\\n \\n \\r
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/git_push.sh b/samples/client/petstore/php/SwaggerClient-php/git_push.sh
index 792320114fb..160f6f21399 100644
--- a/samples/client/petstore/php/SwaggerClient-php/git_push.sh
+++ b/samples/client/petstore/php/SwaggerClient-php/git_push.sh
@@ -36,7 +36,7 @@ git_remote=`git remote`
 if [ "$git_remote" = "" ]; then # git remote not defined
 
     if [ "$GIT_TOKEN" = "" ]; then
-        echo "[INFO] \$GIT_TOKEN (environment variable) is not set. Using the git crediential in your environment."
+        echo "[INFO] \$GIT_TOKEN (environment variable) is not set. Using the git credential in your environment."
         git remote add origin https://github.com/${git_user_id}/${git_repo_id}.git
     else
         git remote add origin https://${git_user_id}:${GIT_TOKEN}@github.com/${git_user_id}/${git_repo_id}.git
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Api/AnotherFakeApi.php b/samples/client/petstore/php/SwaggerClient-php/lib/Api/AnotherFakeApi.php
index 0e50667dc0c..684b69d4495 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Api/AnotherFakeApi.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Api/AnotherFakeApi.php
@@ -17,6 +17,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Api/FakeApi.php b/samples/client/petstore/php/SwaggerClient-php/lib/Api/FakeApi.php
index b712667cbf3..afae95d52b0 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Api/FakeApi.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Api/FakeApi.php
@@ -17,6 +17,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Api/FakeClassnameTags123Api.php b/samples/client/petstore/php/SwaggerClient-php/lib/Api/FakeClassnameTags123Api.php
index 2ef04d3951f..ccf7ee50fae 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Api/FakeClassnameTags123Api.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Api/FakeClassnameTags123Api.php
@@ -17,6 +17,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Api/PetApi.php b/samples/client/petstore/php/SwaggerClient-php/lib/Api/PetApi.php
index 4c7f7845d04..dd00aaa0ec2 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Api/PetApi.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Api/PetApi.php
@@ -17,6 +17,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Api/StoreApi.php b/samples/client/petstore/php/SwaggerClient-php/lib/Api/StoreApi.php
index 5026eecfd74..34ffc857c8e 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Api/StoreApi.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Api/StoreApi.php
@@ -17,6 +17,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Api/UserApi.php b/samples/client/petstore/php/SwaggerClient-php/lib/Api/UserApi.php
index b9d0a3e3f28..adb533a3d65 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Api/UserApi.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Api/UserApi.php
@@ -17,6 +17,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/ApiException.php b/samples/client/petstore/php/SwaggerClient-php/lib/ApiException.php
index 48039762e9c..b38c7188347 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/ApiException.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/ApiException.php
@@ -17,6 +17,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Configuration.php b/samples/client/petstore/php/SwaggerClient-php/lib/Configuration.php
index fc2edcd805d..85e7de94902 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Configuration.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Configuration.php
@@ -17,6 +17,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/HeaderSelector.php b/samples/client/petstore/php/SwaggerClient-php/lib/HeaderSelector.php
index f8b77a0eb8d..fe78207bbca 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/HeaderSelector.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/HeaderSelector.php
@@ -17,6 +17,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/AdditionalPropertiesClass.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/AdditionalPropertiesClass.php
index 1b0aed2b9dc..b0e23df0103 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/AdditionalPropertiesClass.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/AdditionalPropertiesClass.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/Animal.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/Animal.php
index 016dd5f65c9..97c264f8f44 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/Animal.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/Animal.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/AnimalFarm.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/AnimalFarm.php
index 0e5d40ee16d..56c0d7ae63b 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/AnimalFarm.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/AnimalFarm.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/ApiResponse.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/ApiResponse.php
index 5744956fe2a..4457c8de9c6 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/ApiResponse.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/ApiResponse.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/ArrayOfArrayOfNumberOnly.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/ArrayOfArrayOfNumberOnly.php
index 912e033cb0a..62f654eb196 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/ArrayOfArrayOfNumberOnly.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/ArrayOfArrayOfNumberOnly.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/ArrayOfNumberOnly.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/ArrayOfNumberOnly.php
index d15c791fc97..06c74a80f4f 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/ArrayOfNumberOnly.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/ArrayOfNumberOnly.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/ArrayTest.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/ArrayTest.php
index 0d5498db254..2d6e4f18af4 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/ArrayTest.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/ArrayTest.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/Capitalization.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/Capitalization.php
index 9c56f67aa5c..df5d8fbdcdd 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/Capitalization.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/Capitalization.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/Cat.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/Cat.php
index b7f63dab35b..144b7f4f787 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/Cat.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/Cat.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/Category.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/Category.php
index 9f3cd6b4b76..9e3e0408ea7 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/Category.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/Category.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/ClassModel.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/ClassModel.php
index 901e3f7afdb..e2624c52623 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/ClassModel.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/ClassModel.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/Client.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/Client.php
index 737005b1d34..b2fefd61c74 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/Client.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/Client.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/Dog.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/Dog.php
index d49c050b366..e1a06e12191 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/Dog.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/Dog.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/EnumArrays.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/EnumArrays.php
index 7d7ffaaea66..9bdc2a52853 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/EnumArrays.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/EnumArrays.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/EnumClass.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/EnumClass.php
index 8df7d95f527..d54af35fc0d 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/EnumClass.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/EnumClass.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/EnumTest.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/EnumTest.php
index e47b3a303f8..2ab49ca9108 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/EnumTest.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/EnumTest.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/FormatTest.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/FormatTest.php
index 909cb9ecc37..9f2dd600f8b 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/FormatTest.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/FormatTest.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/HasOnlyReadOnly.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/HasOnlyReadOnly.php
index d45fcb7fbe4..072c9775dd9 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/HasOnlyReadOnly.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/HasOnlyReadOnly.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/MapTest.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/MapTest.php
index be3206dd9b5..f687d521b3c 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/MapTest.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/MapTest.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/MixedPropertiesAndAdditionalPropertiesClass.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/MixedPropertiesAndAdditionalPropertiesClass.php
index 183f75381a8..34154c71e62 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/MixedPropertiesAndAdditionalPropertiesClass.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/MixedPropertiesAndAdditionalPropertiesClass.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/Model200Response.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/Model200Response.php
index 274368c3f06..338f3649349 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/Model200Response.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/Model200Response.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/ModelInterface.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/ModelInterface.php
index 23adcb62ac7..0c3499a8b25 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/ModelInterface.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/ModelInterface.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/ModelList.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/ModelList.php
index 25b7d470e83..885e6c4b06a 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/ModelList.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/ModelList.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/ModelReturn.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/ModelReturn.php
index 980992de818..079922e9d4c 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/ModelReturn.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/ModelReturn.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/Name.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/Name.php
index c7604f6ca00..25bfb714533 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/Name.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/Name.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/NumberOnly.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/NumberOnly.php
index d19d010dbfc..92ba431bfe7 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/NumberOnly.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/NumberOnly.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/Order.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/Order.php
index 649eaace628..5d84ee4b890 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/Order.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/Order.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/OuterBoolean.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/OuterBoolean.php
index 12d259785ac..77fe3c5abb1 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/OuterBoolean.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/OuterBoolean.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/OuterComposite.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/OuterComposite.php
index a6b71edb108..406df360ac5 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/OuterComposite.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/OuterComposite.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/OuterEnum.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/OuterEnum.php
index e1254b42f82..eb987be2a3c 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/OuterEnum.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/OuterEnum.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/OuterNumber.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/OuterNumber.php
index 24f44549fda..28b9d87534a 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/OuterNumber.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/OuterNumber.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/OuterString.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/OuterString.php
index e6f01806581..afa5661243a 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/OuterString.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/OuterString.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/Pet.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/Pet.php
index 30d04ccb2b0..dacbe59d3a4 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/Pet.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/Pet.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/ReadOnlyFirst.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/ReadOnlyFirst.php
index f4931794d25..bf186ac7759 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/ReadOnlyFirst.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/ReadOnlyFirst.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/SpecialModelName.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/SpecialModelName.php
index 7c69d553364..9ee9d1484a6 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/SpecialModelName.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/SpecialModelName.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/Tag.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/Tag.php
index 6223f4da216..b3512323216 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/Tag.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/Tag.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/Model/User.php b/samples/client/petstore/php/SwaggerClient-php/lib/Model/User.php
index fef11caad56..606ced51279 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/Model/User.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/Model/User.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**
diff --git a/samples/client/petstore/php/SwaggerClient-php/lib/ObjectSerializer.php b/samples/client/petstore/php/SwaggerClient-php/lib/ObjectSerializer.php
index fe6cbdfe4b3..22ab6d01226 100644
--- a/samples/client/petstore/php/SwaggerClient-php/lib/ObjectSerializer.php
+++ b/samples/client/petstore/php/SwaggerClient-php/lib/ObjectSerializer.php
@@ -18,6 +18,7 @@
  * OpenAPI spec version: 1.0.0
  * Contact: apiteam@swagger.io
  * Generated by: https://github.com/swagger-api/swagger-codegen.git
+ * Swagger Codegen version: 2.3.0-SNAPSHOT
  */
 
 /**