diff --git a/modules/openapi-generator/src/main/resources/php-nextgen/model.mustache b/modules/openapi-generator/src/main/resources/php-nextgen/model.mustache
index 48f7a3fb8a6c..7cf4f21a8550 100644
--- a/modules/openapi-generator/src/main/resources/php-nextgen/model.mustache
+++ b/modules/openapi-generator/src/main/resources/php-nextgen/model.mustache
@@ -40,9 +40,11 @@ use {{invokerPackage}}\ObjectSerializer;
  * @package  {{invokerPackage}}
  * @author   OpenAPI Generator team
  * @link     https://openapi-generator.tech
+{{^parentSchema}}
 {{^isEnum}}
  * @implements ArrayAccess<string, mixed>
 {{/isEnum}}
+{{/parentSchema}}
  */
 {{#isEnum}}{{>model_enum}}{{/isEnum}}{{^isEnum}}{{>model_generic}}{{/isEnum}}
 {{/model}}{{/models}}
diff --git a/samples/client/echo_api/php-nextgen-streaming/src/Model/DataQuery.php b/samples/client/echo_api/php-nextgen-streaming/src/Model/DataQuery.php
index 5022babb3fac..39b31ccee222 100644
--- a/samples/client/echo_api/php-nextgen-streaming/src/Model/DataQuery.php
+++ b/samples/client/echo_api/php-nextgen-streaming/src/Model/DataQuery.php
@@ -38,7 +38,6 @@
  * @package  OpenAPI\Client
  * @author   OpenAPI Generator team
  * @link     https://openapi-generator.tech
- * @implements ArrayAccess<string, mixed>
  */
 class DataQuery extends Query
 {
diff --git a/samples/client/echo_api/php-nextgen/src/Model/DataQuery.php b/samples/client/echo_api/php-nextgen/src/Model/DataQuery.php
index 5022babb3fac..39b31ccee222 100644
--- a/samples/client/echo_api/php-nextgen/src/Model/DataQuery.php
+++ b/samples/client/echo_api/php-nextgen/src/Model/DataQuery.php
@@ -38,7 +38,6 @@
  * @package  OpenAPI\Client
  * @author   OpenAPI Generator team
  * @link     https://openapi-generator.tech
- * @implements ArrayAccess<string, mixed>
  */
 class DataQuery extends Query
 {
diff --git a/samples/client/petstore/php-nextgen/OpenAPIClient-php/src/Model/Cat.php b/samples/client/petstore/php-nextgen/OpenAPIClient-php/src/Model/Cat.php
index bf8384cb0833..7a7d7285ad0b 100644
--- a/samples/client/petstore/php-nextgen/OpenAPIClient-php/src/Model/Cat.php
+++ b/samples/client/petstore/php-nextgen/OpenAPIClient-php/src/Model/Cat.php
@@ -37,7 +37,6 @@
  * @package  OpenAPI\Client
  * @author   OpenAPI Generator team
  * @link     https://openapi-generator.tech
- * @implements ArrayAccess<string, mixed>
  */
 class Cat extends Animal
 {
diff --git a/samples/client/petstore/php-nextgen/OpenAPIClient-php/src/Model/ChildWithNullable.php b/samples/client/petstore/php-nextgen/OpenAPIClient-php/src/Model/ChildWithNullable.php
index 90b0df86d3e3..408f0fa5bd32 100644
--- a/samples/client/petstore/php-nextgen/OpenAPIClient-php/src/Model/ChildWithNullable.php
+++ b/samples/client/petstore/php-nextgen/OpenAPIClient-php/src/Model/ChildWithNullable.php
@@ -37,7 +37,6 @@
  * @package  OpenAPI\Client
  * @author   OpenAPI Generator team
  * @link     https://openapi-generator.tech
- * @implements ArrayAccess<string, mixed>
  */
 class ChildWithNullable extends ParentWithNullable
 {
diff --git a/samples/client/petstore/php-nextgen/OpenAPIClient-php/src/Model/DiscriminatorChild.php b/samples/client/petstore/php-nextgen/OpenAPIClient-php/src/Model/DiscriminatorChild.php
index 6bfd2a8530d0..0abfde63b9e7 100644
--- a/samples/client/petstore/php-nextgen/OpenAPIClient-php/src/Model/DiscriminatorChild.php
+++ b/samples/client/petstore/php-nextgen/OpenAPIClient-php/src/Model/DiscriminatorChild.php
@@ -37,7 +37,6 @@
  * @package  OpenAPI\Client
  * @author   OpenAPI Generator team
  * @link     https://openapi-generator.tech
- * @implements ArrayAccess<string, mixed>
  */
 class DiscriminatorChild extends DiscriminatorBase
 {
diff --git a/samples/client/petstore/php-nextgen/OpenAPIClient-php/src/Model/Dog.php b/samples/client/petstore/php-nextgen/OpenAPIClient-php/src/Model/Dog.php
index 4718df41ebb0..b79f4ec2fcfc 100644
--- a/samples/client/petstore/php-nextgen/OpenAPIClient-php/src/Model/Dog.php
+++ b/samples/client/petstore/php-nextgen/OpenAPIClient-php/src/Model/Dog.php
@@ -37,7 +37,6 @@
  * @package  OpenAPI\Client
  * @author   OpenAPI Generator team
  * @link     https://openapi-generator.tech
- * @implements ArrayAccess<string, mixed>
  */
 class Dog extends Animal
 {