diff --git a/docs/generators/php-dt.md b/docs/generators/php-dt.md
index 752e5027cd7..7f9d0789bd5 100644
--- a/docs/generators/php-dt.md
+++ b/docs/generators/php-dt.md
@@ -56,7 +56,6 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 <li>bool</li>
 <li>boolean</li>
 <li>byte</li>
-<li>double</li>
 <li>float</li>
 <li>int</li>
 <li>integer</li>
diff --git a/docs/generators/php-laravel.md b/docs/generators/php-laravel.md
index 122c3f56cc0..9c606506d75 100644
--- a/docs/generators/php-laravel.md
+++ b/docs/generators/php-laravel.md
@@ -57,7 +57,6 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 <li>bool</li>
 <li>boolean</li>
 <li>byte</li>
-<li>double</li>
 <li>float</li>
 <li>int</li>
 <li>integer</li>
diff --git a/docs/generators/php-lumen.md b/docs/generators/php-lumen.md
index f8b02f001ce..28ac527eef4 100644
--- a/docs/generators/php-lumen.md
+++ b/docs/generators/php-lumen.md
@@ -57,7 +57,6 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 <li>bool</li>
 <li>boolean</li>
 <li>byte</li>
-<li>double</li>
 <li>float</li>
 <li>int</li>
 <li>integer</li>
diff --git a/docs/generators/php-mezzio-ph.md b/docs/generators/php-mezzio-ph.md
index f94d54b3b3e..01cb9eb6ccd 100644
--- a/docs/generators/php-mezzio-ph.md
+++ b/docs/generators/php-mezzio-ph.md
@@ -56,7 +56,6 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 <li>bool</li>
 <li>boolean</li>
 <li>byte</li>
-<li>double</li>
 <li>float</li>
 <li>int</li>
 <li>integer</li>
diff --git a/docs/generators/php-slim-deprecated.md b/docs/generators/php-slim-deprecated.md
index 508fe455b35..f5844cd7096 100644
--- a/docs/generators/php-slim-deprecated.md
+++ b/docs/generators/php-slim-deprecated.md
@@ -57,7 +57,6 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 <li>bool</li>
 <li>boolean</li>
 <li>byte</li>
-<li>double</li>
 <li>float</li>
 <li>int</li>
 <li>integer</li>
diff --git a/docs/generators/php-slim4.md b/docs/generators/php-slim4.md
index a995e883495..fd30427de47 100644
--- a/docs/generators/php-slim4.md
+++ b/docs/generators/php-slim4.md
@@ -58,7 +58,6 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 <li>bool</li>
 <li>boolean</li>
 <li>byte</li>
-<li>double</li>
 <li>float</li>
 <li>int</li>
 <li>integer</li>
diff --git a/docs/generators/php-symfony.md b/docs/generators/php-symfony.md
index 608dee49383..f818259b0e8 100644
--- a/docs/generators/php-symfony.md
+++ b/docs/generators/php-symfony.md
@@ -62,7 +62,6 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 <li>array</li>
 <li>bool</li>
 <li>byte</li>
-<li>double</li>
 <li>float</li>
 <li>int</li>
 <li>mixed</li>
diff --git a/docs/generators/php.md b/docs/generators/php.md
index 7d71c4ce009..298d059c381 100644
--- a/docs/generators/php.md
+++ b/docs/generators/php.md
@@ -58,7 +58,6 @@ These options may be applied as additional-properties (cli) or configOptions (pl
 <li>bool</li>
 <li>boolean</li>
 <li>byte</li>
-<li>double</li>
 <li>float</li>
 <li>int</li>
 <li>integer</li>
diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractPhpCodegen.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractPhpCodegen.java
index 76390232004..ec90775f38a 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractPhpCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractPhpCodegen.java
@@ -91,7 +91,6 @@ public abstract class AbstractPhpCodegen extends DefaultCodegen implements Codeg
                         "boolean",
                         "int",
                         "integer",
-                        "double",
                         "float",
                         "string",
                         "object",
@@ -119,7 +118,7 @@ public abstract class AbstractPhpCodegen extends DefaultCodegen implements Codeg
         typeMapping.put("number", "float");
         typeMapping.put("float", "float");
         typeMapping.put("decimal", "float");
-        typeMapping.put("double", "double");
+        typeMapping.put("double", "float");
         typeMapping.put("string", "string");
         typeMapping.put("byte", "int");
         typeMapping.put("boolean", "bool");
@@ -656,7 +655,7 @@ public abstract class AbstractPhpCodegen extends DefaultCodegen implements Codeg
 
     @Override
     public String toEnumValue(String value, String datatype) {
-        if ("int".equals(datatype) || "double".equals(datatype) || "float".equals(datatype)) {
+        if ("int".equals(datatype) || "float".equals(datatype)) {
             return value;
         } else {
             return "\'" + escapeText(value) + "\'";
@@ -684,7 +683,7 @@ public abstract class AbstractPhpCodegen extends DefaultCodegen implements Codeg
         }
 
         // number
-        if ("int".equals(datatype) || "double".equals(datatype) || "float".equals(datatype)) {
+        if ("int".equals(datatype) || "float".equals(datatype)) {
             String varName = name;
             varName = varName.replaceAll("-", "MINUS_");
             varName = varName.replaceAll("\\+", "PLUS_");
diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PhpDataTransferClientCodegen.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PhpDataTransferClientCodegen.java
index 9f4cb5651d3..796d8ad8478 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PhpDataTransferClientCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PhpDataTransferClientCodegen.java
@@ -92,9 +92,6 @@ public class PhpDataTransferClientCodegen extends AbstractPhpCodegen {
                 .stability(Stability.BETA)
                 .build();
 
-        //no point to use double - http://php.net/manual/en/language.types.float.php , especially because of PHP 7+ float type declaration
-        typeMapping.put("double", "float");
-
         // remove these from primitive types to make the output works
         languageSpecificPrimitives.remove("\\DateTime");
         languageSpecificPrimitives.remove("\\SplFileObject");
diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PhpLaravelServerCodegen.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PhpLaravelServerCodegen.java
index 62f7d164eae..dadc17a6fff 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PhpLaravelServerCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PhpLaravelServerCodegen.java
@@ -382,7 +382,7 @@ public class PhpLaravelServerCodegen extends AbstractPhpCodegen {
         }
 
         // number
-        if ("int".equals(datatype) || "double".equals(datatype) || "float".equals(datatype)) {
+        if ("int".equals(datatype) || "float".equals(datatype)) {
             String varName = "NUMBER_" + value;
             varName = varName.replaceAll("-", "MINUS_");
             varName = varName.replaceAll("\\+", "PLUS_");
diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PhpMezzioPathHandlerServerCodegen.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PhpMezzioPathHandlerServerCodegen.java
index cd81b3174a6..50050aa23fa 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PhpMezzioPathHandlerServerCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PhpMezzioPathHandlerServerCodegen.java
@@ -87,9 +87,6 @@ public class PhpMezzioPathHandlerServerCodegen extends AbstractPhpCodegen {
                 )
         );
 
-        //no point to use double - http://php.net/manual/en/language.types.float.php , especially because of PHP 7+ float type declaration
-        typeMapping.put("double", "float");
-
         // remove these from primitive types to make the output works
         languageSpecificPrimitives.remove("\\DateTime");
         languageSpecificPrimitives.remove("\\SplFileObject");
diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PhpSilexServerCodegen.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PhpSilexServerCodegen.java
index fd710688326..373381eafed 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PhpSilexServerCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PhpSilexServerCodegen.java
@@ -98,7 +98,6 @@ public class PhpSilexServerCodegen extends DefaultCodegen implements CodegenConf
                         "boolean",
                         "int",
                         "integer",
-                        "double",
                         "float",
                         "string",
                         "object",
@@ -115,7 +114,7 @@ public class PhpSilexServerCodegen extends DefaultCodegen implements CodegenConf
         typeMapping.put("integer", "int");
         typeMapping.put("long", "int");
         typeMapping.put("float", "float");
-        typeMapping.put("double", "double");
+        typeMapping.put("double", "float");
         typeMapping.put("string", "string");
         typeMapping.put("byte", "int");
         typeMapping.put("boolean", "boolean");
diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PhpSymfonyServerCodegen.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PhpSymfonyServerCodegen.java
index ea70427fb3f..7f187f1d70a 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PhpSymfonyServerCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PhpSymfonyServerCodegen.java
@@ -147,7 +147,6 @@ public class PhpSymfonyServerCodegen extends AbstractPhpCodegen implements Codeg
                 Arrays.asList(
                         "bool",
                         "int",
-                        "double",
                         "float",
                         "string",
                         "object",
@@ -183,7 +182,7 @@ public class PhpSymfonyServerCodegen extends AbstractPhpCodegen implements Codeg
         typeMapping.put("decimal", "float");
         typeMapping.put("number", "float");
         typeMapping.put("float", "float");
-        typeMapping.put("double", "double");
+        typeMapping.put("double", "float");
         typeMapping.put("string", "string");
         typeMapping.put("byte", "int");
         typeMapping.put("boolean", "bool");
@@ -588,7 +587,7 @@ public class PhpSymfonyServerCodegen extends AbstractPhpCodegen implements Codeg
 
     @Override
     public String toEnumValue(String value, String datatype) {
-        if ("int".equals(datatype) || "double".equals(datatype) || "float".equals(datatype)) {
+        if ("int".equals(datatype) || "float".equals(datatype)) {
             return value;
         } else {
             return "\"" + escapeText(value) + "\"";
diff --git a/samples/client/petstore/php/OpenAPIClient-php/docs/Api/FakeApi.md b/samples/client/petstore/php/OpenAPIClient-php/docs/Api/FakeApi.md
index 0755aa7e2f8..69af2914b90 100644
--- a/samples/client/petstore/php/OpenAPIClient-php/docs/Api/FakeApi.md
+++ b/samples/client/petstore/php/OpenAPIClient-php/docs/Api/FakeApi.md
@@ -664,7 +664,7 @@ $apiInstance = new OpenAPI\Client\Api\FakeApi(
     $config
 );
 $number = 3.4; // float | None
-$double = 3.4; // double | None
+$double = 3.4; // float | None
 $pattern_without_delimiter = 'pattern_without_delimiter_example'; // string | None
 $byte = 'byte_example'; // string | None
 $integer = 56; // int | None
@@ -690,7 +690,7 @@ try {
 | Name | Type | Description  | Notes |
 | ------------- | ------------- | ------------- | ------------- |
 | **number** | **float**| None | |
-| **double** | **double**| None | |
+| **double** | **float**| None | |
 | **pattern_without_delimiter** | **string**| None | |
 | **byte** | **string**| None | |
 | **integer** | **int**| None | [optional] |
@@ -749,7 +749,7 @@ $enum_header_string = '-efg'; // string | Header parameter enum test (string)
 $enum_query_string_array = array('enum_query_string_array_example'); // string[] | Query parameter enum test (string array)
 $enum_query_string = '-efg'; // string | Query parameter enum test (string)
 $enum_query_integer = 56; // int | Query parameter enum test (double)
-$enum_query_double = 3.4; // double | Query parameter enum test (double)
+$enum_query_double = 3.4; // float | Query parameter enum test (double)
 $enum_query_model_array = array(new \OpenAPI\Client\Model\\OpenAPI\Client\Model\EnumClass()); // \OpenAPI\Client\Model\EnumClass[]
 $enum_form_string_array = array('$'); // string[] | Form parameter enum test (string array)
 $enum_form_string = '-efg'; // string | Form parameter enum test (string)
@@ -770,7 +770,7 @@ try {
 | **enum_query_string_array** | [**string[]**](../Model/string.md)| Query parameter enum test (string array) | [optional] |
 | **enum_query_string** | **string**| Query parameter enum test (string) | [optional] [default to &#39;-efg&#39;] |
 | **enum_query_integer** | **int**| Query parameter enum test (double) | [optional] |
-| **enum_query_double** | **double**| Query parameter enum test (double) | [optional] |
+| **enum_query_double** | **float**| Query parameter enum test (double) | [optional] |
 | **enum_query_model_array** | [**\OpenAPI\Client\Model\EnumClass[]**](../Model/\OpenAPI\Client\Model\EnumClass.md)|  | [optional] |
 | **enum_form_string_array** | [**string[]**](../Model/string.md)| Form parameter enum test (string array) | [optional] [default to &#39;$&#39;] |
 | **enum_form_string** | **string**| Form parameter enum test (string) | [optional] [default to &#39;-efg&#39;] |
diff --git a/samples/client/petstore/php/OpenAPIClient-php/docs/Model/EnumTest.md b/samples/client/petstore/php/OpenAPIClient-php/docs/Model/EnumTest.md
index 28781e6a382..d2e02570c54 100644
--- a/samples/client/petstore/php/OpenAPIClient-php/docs/Model/EnumTest.md
+++ b/samples/client/petstore/php/OpenAPIClient-php/docs/Model/EnumTest.md
@@ -7,7 +7,7 @@ Name | Type | Description | Notes
 **enum_string** | **string** |  | [optional]
 **enum_string_required** | **string** |  |
 **enum_integer** | **int** |  | [optional]
-**enum_number** | **double** |  | [optional]
+**enum_number** | **float** |  | [optional]
 **outer_enum** | [**\OpenAPI\Client\Model\OuterEnum**](OuterEnum.md) |  | [optional]
 **outer_enum_integer** | [**\OpenAPI\Client\Model\OuterEnumInteger**](OuterEnumInteger.md) |  | [optional]
 **outer_enum_default_value** | [**\OpenAPI\Client\Model\OuterEnumDefaultValue**](OuterEnumDefaultValue.md) |  | [optional]
diff --git a/samples/client/petstore/php/OpenAPIClient-php/docs/Model/FormatTest.md b/samples/client/petstore/php/OpenAPIClient-php/docs/Model/FormatTest.md
index 2ce2f9dcb85..81f6387a2ed 100644
--- a/samples/client/petstore/php/OpenAPIClient-php/docs/Model/FormatTest.md
+++ b/samples/client/petstore/php/OpenAPIClient-php/docs/Model/FormatTest.md
@@ -9,7 +9,7 @@ Name | Type | Description | Notes
 **int64** | **int** |  | [optional]
 **number** | **float** |  |
 **float** | **float** |  | [optional]
-**double** | **double** |  | [optional]
+**double** | **float** |  | [optional]
 **decimal** | **float** |  | [optional]
 **string** | **string** |  | [optional]
 **byte** | **string** |  |
diff --git a/samples/client/petstore/php/OpenAPIClient-php/lib/Api/FakeApi.php b/samples/client/petstore/php/OpenAPIClient-php/lib/Api/FakeApi.php
index e65cb3c1d7d..521674d1927 100644
--- a/samples/client/petstore/php/OpenAPIClient-php/lib/Api/FakeApi.php
+++ b/samples/client/petstore/php/OpenAPIClient-php/lib/Api/FakeApi.php
@@ -2925,7 +2925,7 @@ class FakeApi
      * Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트
      *
      * @param  float $number None (required)
-     * @param  double $double None (required)
+     * @param  float $double None (required)
      * @param  string $pattern_without_delimiter None (required)
      * @param  string $byte None (required)
      * @param  int $integer None (optional)
@@ -2954,7 +2954,7 @@ class FakeApi
      * Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트
      *
      * @param  float $number None (required)
-     * @param  double $double None (required)
+     * @param  float $double None (required)
      * @param  string $pattern_without_delimiter None (required)
      * @param  string $byte None (required)
      * @param  int $integer None (optional)
@@ -3026,7 +3026,7 @@ class FakeApi
      * Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트
      *
      * @param  float $number None (required)
-     * @param  double $double None (required)
+     * @param  float $double None (required)
      * @param  string $pattern_without_delimiter None (required)
      * @param  string $byte None (required)
      * @param  int $integer None (optional)
@@ -3059,7 +3059,7 @@ class FakeApi
      * Fake endpoint for testing various parameters 假端點 偽のエンドポイント 가짜 엔드 포인트
      *
      * @param  float $number None (required)
-     * @param  double $double None (required)
+     * @param  float $double None (required)
      * @param  string $pattern_without_delimiter None (required)
      * @param  string $byte None (required)
      * @param  int $integer None (optional)
@@ -3108,7 +3108,7 @@ class FakeApi
      * Create request for operation 'testEndpointParameters'
      *
      * @param  float $number None (required)
-     * @param  double $double None (required)
+     * @param  float $double None (required)
      * @param  string $pattern_without_delimiter None (required)
      * @param  string $byte None (required)
      * @param  int $integer None (optional)
@@ -3360,7 +3360,7 @@ class FakeApi
      * @param  string[] $enum_query_string_array Query parameter enum test (string array) (optional)
      * @param  string $enum_query_string Query parameter enum test (string) (optional, default to '-efg')
      * @param  int $enum_query_integer Query parameter enum test (double) (optional)
-     * @param  double $enum_query_double Query parameter enum test (double) (optional)
+     * @param  float $enum_query_double Query parameter enum test (double) (optional)
      * @param  \OpenAPI\Client\Model\EnumClass[] $enum_query_model_array enum_query_model_array (optional)
      * @param  string[] $enum_form_string_array Form parameter enum test (string array) (optional, default to '$')
      * @param  string $enum_form_string Form parameter enum test (string) (optional, default to '-efg')
@@ -3384,7 +3384,7 @@ class FakeApi
      * @param  string[] $enum_query_string_array Query parameter enum test (string array) (optional)
      * @param  string $enum_query_string Query parameter enum test (string) (optional, default to '-efg')
      * @param  int $enum_query_integer Query parameter enum test (double) (optional)
-     * @param  double $enum_query_double Query parameter enum test (double) (optional)
+     * @param  float $enum_query_double Query parameter enum test (double) (optional)
      * @param  \OpenAPI\Client\Model\EnumClass[] $enum_query_model_array (optional)
      * @param  string[] $enum_form_string_array Form parameter enum test (string array) (optional, default to '$')
      * @param  string $enum_form_string Form parameter enum test (string) (optional, default to '-efg')
@@ -3451,7 +3451,7 @@ class FakeApi
      * @param  string[] $enum_query_string_array Query parameter enum test (string array) (optional)
      * @param  string $enum_query_string Query parameter enum test (string) (optional, default to '-efg')
      * @param  int $enum_query_integer Query parameter enum test (double) (optional)
-     * @param  double $enum_query_double Query parameter enum test (double) (optional)
+     * @param  float $enum_query_double Query parameter enum test (double) (optional)
      * @param  \OpenAPI\Client\Model\EnumClass[] $enum_query_model_array (optional)
      * @param  string[] $enum_form_string_array Form parameter enum test (string array) (optional, default to '$')
      * @param  string $enum_form_string Form parameter enum test (string) (optional, default to '-efg')
@@ -3479,7 +3479,7 @@ class FakeApi
      * @param  string[] $enum_query_string_array Query parameter enum test (string array) (optional)
      * @param  string $enum_query_string Query parameter enum test (string) (optional, default to '-efg')
      * @param  int $enum_query_integer Query parameter enum test (double) (optional)
-     * @param  double $enum_query_double Query parameter enum test (double) (optional)
+     * @param  float $enum_query_double Query parameter enum test (double) (optional)
      * @param  \OpenAPI\Client\Model\EnumClass[] $enum_query_model_array (optional)
      * @param  string[] $enum_form_string_array Form parameter enum test (string array) (optional, default to '$')
      * @param  string $enum_form_string Form parameter enum test (string) (optional, default to '-efg')
@@ -3523,7 +3523,7 @@ class FakeApi
      * @param  string[] $enum_query_string_array Query parameter enum test (string array) (optional)
      * @param  string $enum_query_string Query parameter enum test (string) (optional, default to '-efg')
      * @param  int $enum_query_integer Query parameter enum test (double) (optional)
-     * @param  double $enum_query_double Query parameter enum test (double) (optional)
+     * @param  float $enum_query_double Query parameter enum test (double) (optional)
      * @param  \OpenAPI\Client\Model\EnumClass[] $enum_query_model_array (optional)
      * @param  string[] $enum_form_string_array Form parameter enum test (string array) (optional, default to '$')
      * @param  string $enum_form_string Form parameter enum test (string) (optional, default to '-efg')
diff --git a/samples/client/petstore/php/OpenAPIClient-php/lib/Model/EnumTest.php b/samples/client/petstore/php/OpenAPIClient-php/lib/Model/EnumTest.php
index 250de956f10..1a0ecf9cf7d 100644
--- a/samples/client/petstore/php/OpenAPIClient-php/lib/Model/EnumTest.php
+++ b/samples/client/petstore/php/OpenAPIClient-php/lib/Model/EnumTest.php
@@ -60,7 +60,7 @@ class EnumTest implements ModelInterface, ArrayAccess, \JsonSerializable
         'enum_string' => 'string',
         'enum_string_required' => 'string',
         'enum_integer' => 'int',
-        'enum_number' => 'double',
+        'enum_number' => 'float',
         'outer_enum' => '\OpenAPI\Client\Model\OuterEnum',
         'outer_enum_integer' => '\OpenAPI\Client\Model\OuterEnumInteger',
         'outer_enum_default_value' => '\OpenAPI\Client\Model\OuterEnumDefaultValue',
@@ -551,7 +551,7 @@ class EnumTest implements ModelInterface, ArrayAccess, \JsonSerializable
     /**
      * Gets enum_number
      *
-     * @return double|null
+     * @return float|null
      */
     public function getEnumNumber()
     {
@@ -561,7 +561,7 @@ class EnumTest implements ModelInterface, ArrayAccess, \JsonSerializable
     /**
      * Sets enum_number
      *
-     * @param double|null $enum_number enum_number
+     * @param float|null $enum_number enum_number
      *
      * @return self
      */
diff --git a/samples/client/petstore/php/OpenAPIClient-php/lib/Model/FormatTest.php b/samples/client/petstore/php/OpenAPIClient-php/lib/Model/FormatTest.php
index 6c37a4dd6d3..78598c3fbab 100644
--- a/samples/client/petstore/php/OpenAPIClient-php/lib/Model/FormatTest.php
+++ b/samples/client/petstore/php/OpenAPIClient-php/lib/Model/FormatTest.php
@@ -62,7 +62,7 @@ class FormatTest implements ModelInterface, ArrayAccess, \JsonSerializable
         'int64' => 'int',
         'number' => 'float',
         'float' => 'float',
-        'double' => 'double',
+        'double' => 'float',
         'decimal' => 'float',
         'string' => 'string',
         'byte' => 'string',
@@ -636,7 +636,7 @@ class FormatTest implements ModelInterface, ArrayAccess, \JsonSerializable
     /**
      * Gets double
      *
-     * @return double|null
+     * @return float|null
      */
     public function getDouble()
     {
@@ -646,7 +646,7 @@ class FormatTest implements ModelInterface, ArrayAccess, \JsonSerializable
     /**
      * Sets double
      *
-     * @param double|null $double double
+     * @param float|null $double double
      *
      * @return self
      */
diff --git a/samples/client/petstore/php/OpenAPIClient-php/lib/ObjectSerializer.php b/samples/client/petstore/php/OpenAPIClient-php/lib/ObjectSerializer.php
index c2afbcd112e..60b8c641a69 100644
--- a/samples/client/petstore/php/OpenAPIClient-php/lib/ObjectSerializer.php
+++ b/samples/client/petstore/php/OpenAPIClient-php/lib/ObjectSerializer.php
@@ -87,7 +87,7 @@ class ObjectSerializer
                 foreach ($data::openAPITypes() as $property => $openAPIType) {
                     $getter = $data::getters()[$property];
                     $value = $data->$getter();
-                    if ($value !== null && !in_array($openAPIType, ['\DateTime', '\SplFileObject', 'array', 'bool', 'boolean', 'byte', 'double', 'float', 'int', 'integer', 'mixed', 'number', 'object', 'string', 'void'], true)) {
+                    if ($value !== null && !in_array($openAPIType, ['\DateTime', '\SplFileObject', 'array', 'bool', 'boolean', 'byte', 'float', 'int', 'integer', 'mixed', 'number', 'object', 'string', 'void'], true)) {
                         $callable = [$openAPIType, 'getAllowableEnumValues'];
                         if (is_callable($callable)) {
                             /** array $callable */
@@ -441,7 +441,7 @@ class ObjectSerializer
         }
 
         /** @psalm-suppress ParadoxicalCondition */
-        if (in_array($class, ['\DateTime', '\SplFileObject', 'array', 'bool', 'boolean', 'byte', 'double', 'float', 'int', 'integer', 'mixed', 'number', 'object', 'string', 'void'], true)) {
+        if (in_array($class, ['\DateTime', '\SplFileObject', 'array', 'bool', 'boolean', 'byte', 'float', 'int', 'integer', 'mixed', 'number', 'object', 'string', 'void'], true)) {
             settype($data, $class);
             return $data;
         }
diff --git a/samples/server/petstore/php-laravel/lib/app/Models/EnumTest.php b/samples/server/petstore/php-laravel/lib/app/Models/EnumTest.php
index b188f1e86f0..c5088d3f9fe 100644
--- a/samples/server/petstore/php-laravel/lib/app/Models/EnumTest.php
+++ b/samples/server/petstore/php-laravel/lib/app/Models/EnumTest.php
@@ -18,7 +18,7 @@ class EnumTest {
     /** @var int $enumInteger */
     public $enumInteger = 0;
 
-    /** @var double $enumNumber */
+    /** @var float $enumNumber */
     public $enumNumber = 0;
 
     /** @var string|null $outerEnum */
diff --git a/samples/server/petstore/php-laravel/lib/app/Models/FormatTest.php b/samples/server/petstore/php-laravel/lib/app/Models/FormatTest.php
index d5114123c6b..91d9e000875 100644
--- a/samples/server/petstore/php-laravel/lib/app/Models/FormatTest.php
+++ b/samples/server/petstore/php-laravel/lib/app/Models/FormatTest.php
@@ -24,7 +24,7 @@ class FormatTest {
     /** @var float $float */
     public $float = 0;
 
-    /** @var double $double */
+    /** @var float $double */
     public $double = 0;
 
     /** @var float $decimal */