diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/DefaultCodegen.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/DefaultCodegen.java
index 2a5145e1030..b42858a2494 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/DefaultCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/DefaultCodegen.java
@@ -1122,6 +1122,20 @@ public class DefaultCodegen implements CodegenConfig {
                         .replace("\"", "\\\""));
     }
 
+    /**
+     * This method escapes text to be used in a single quoted string
+     * @param input the input string
+     * @return the escaped string
+     */
+    public String escapeTextInSingleQuotes(String input) {
+        if (input == null) {
+            return null;
+        }
+
+        return escapeText(input).replace("'", "\\'");
+    }
+
+
     /**
      * Escape characters while allowing new lines
      *
diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractDartCodegen.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractDartCodegen.java
index eaba6303835..3c3c91b9c7b 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractDartCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractDartCodegen.java
@@ -753,7 +753,7 @@ public abstract class AbstractDartCodegen extends DefaultCodegen {
                 "int".equalsIgnoreCase(datatype)) {
             return value;
         } else {
-            return "'" + escapeText(value) + "'";
+            return "'" + escapeTextInSingleQuotes(value) + "'";
         }
     }
 
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 040b6cddd24..b850b6bffc8 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
@@ -641,9 +641,10 @@ public abstract class AbstractPhpCodegen extends DefaultCodegen implements Codeg
 
         if ("String".equalsIgnoreCase(type) || p.isString) {
             if (example == null) {
-                example = "'" + p.paramName + "_example'";
+                example = "'" +  escapeTextInSingleQuotes(p.paramName) + "_example'";
+            } else {
+                example = escapeText(example);
             }
-            example = escapeText(example);
         } else if ("Integer".equals(type) || "int".equals(type)) {
             if (example == null) {
                 example = "56";
@@ -660,17 +661,17 @@ public abstract class AbstractPhpCodegen extends DefaultCodegen implements Codeg
             if (example == null) {
                 example = "/path/to/file.txt";
             }
-            example = "\"" + escapeText(example) + "\"";
+            example = "'" + escapeTextInSingleQuotes(example) + "'";
         } else if ("\\Date".equalsIgnoreCase(type)) {
             if (example == null) {
                 example = "2013-10-20";
             }
-            example = "new \\DateTime(\"" + escapeText(example) + "\")";
+            example = "new \\DateTime('" + escapeTextInSingleQuotes(example) + "')";
         } else if ("\\DateTime".equalsIgnoreCase(type)) {
             if (example == null) {
                 example = "2013-10-20T19:20:30+01:00";
             }
-            example = "new \\DateTime(\"" + escapeText(example) + "\")";
+            example = "new \\DateTime('" + escapeTextInSingleQuotes(example) + "')";
         } else if ("object".equals(type)) {
             example = "new \\stdClass";
         } else if (!languageSpecificPrimitives.contains(type)) {
@@ -718,7 +719,7 @@ public abstract class AbstractPhpCodegen extends DefaultCodegen implements Codeg
         if ("int".equals(datatype) || "float".equals(datatype)) {
             return value;
         } else {
-            return "\'" + escapeText(value) + "\'";
+            return "'" + escapeTextInSingleQuotes(value) + "'";
         }
     }
 
@@ -830,6 +831,16 @@ public abstract class AbstractPhpCodegen extends DefaultCodegen implements Codeg
         return super.escapeText(input).trim();
     }
 
+    @Override
+    public String escapeTextInSingleQuotes(String input) {
+        if (input == null) {
+            return input;
+        }
+
+        // Unescape double quotes because PHP keeps the backslashes if a character does not need to be escaped
+        return super.escapeTextInSingleQuotes(input).replace("\\\"", "\"");
+    }
+
     public void escapeMediaType(List<CodegenOperation> operationList) {
         for (CodegenOperation op : operationList) {
             if (!op.hasProduces) {
diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractPythonCodegen.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractPythonCodegen.java
index 8288294ffbd..6c49ce78fd7 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractPythonCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractPythonCodegen.java
@@ -412,7 +412,7 @@ public abstract class AbstractPythonCodegen extends DefaultCodegen implements Co
             // Enum case:
             example = schema.getEnum().get(0).toString();
             if (ModelUtils.isStringSchema(schema)) {
-                example = "'" + escapeText(example) + "'";
+                example = "'" + escapeTextInSingleQuotes(example) + "'";
             }
             if (null == example)
                 LOGGER.warn("Empty enum. Cannot built an example!");
@@ -511,7 +511,7 @@ public abstract class AbstractPythonCodegen extends DefaultCodegen implements Co
                 if (additional.getEnum() != null && !additional.getEnum().isEmpty()) {
                     theKey = additional.getEnum().get(0).toString();
                     if (ModelUtils.isStringSchema(additional)) {
-                        theKey = "'" + escapeText(theKey) + "'";
+                        theKey = "'" + escapeTextInSingleQuotes(theKey) + "'";
                     }
                 }
                 example = "{\n" + indentationString + theKey + " : " + toExampleValueRecursive(additional, includedSchemas, indentation + 1) + "\n" + indentationString + "}";
@@ -577,7 +577,7 @@ public abstract class AbstractPythonCodegen extends DefaultCodegen implements Co
         }
 
         if (ModelUtils.isStringSchema(schema)) {
-            example = "'" + escapeText(example) + "'";
+            example = "'" + escapeTextInSingleQuotes(example) + "'";
         }
 
         return example;
@@ -603,7 +603,7 @@ public abstract class AbstractPythonCodegen extends DefaultCodegen implements Co
             if (example == null) {
                 example = p.paramName + "_example";
             }
-            example = "'" + escapeText(example) + "'";
+            example = "'" + escapeTextInSingleQuotes(example) + "'";
         } else if ("Integer".equals(type) || "int".equals(type)) {
             if (example == null) {
                 example = "56";
@@ -620,17 +620,17 @@ public abstract class AbstractPythonCodegen extends DefaultCodegen implements Co
             if (example == null) {
                 example = "/path/to/file";
             }
-            example = "'" + escapeText(example) + "'";
+            example = "'" + escapeTextInSingleQuotes(example) + "'";
         } else if ("Date".equalsIgnoreCase(type)) {
             if (example == null) {
                 example = "2013-10-20";
             }
-            example = "'" + escapeText(example) + "'";
+            example = "'" + escapeTextInSingleQuotes(example) + "'";
         } else if ("DateTime".equalsIgnoreCase(type)) {
             if (example == null) {
                 example = "2013-10-20T19:20:30+01:00";
             }
-            example = "'" + escapeText(example) + "'";
+            example = "'" + escapeTextInSingleQuotes(example) + "'";
         } else if (!languageSpecificPrimitives.contains(type)) {
             // type is a model class, e.g. User
             example = this.packageName + "." + type + "()";
@@ -1419,7 +1419,7 @@ public abstract class AbstractPythonCodegen extends DefaultCodegen implements Co
         if ("int".equals(datatype) || "float".equals(datatype)) {
             return value;
         } else {
-            return "\'" + escapeText(value) + "\'";
+            return "'" + escapeTextInSingleQuotes(value) + "'";
         }
     }
 
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 8a0aa66e939..2a3c2ffef01 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
@@ -231,15 +231,6 @@ public class PhpSymfonyServerCodegen extends AbstractPhpCodegen implements Codeg
         return (outputFolder + File.separator + toSrcPath(controllerPackage, srcBasePath));
     }
 
-    @Override
-    public String escapeText(String input) {
-        if (input != null) {
-            // Trim the string to avoid leading and trailing spaces.
-            return super.escapeText(input).trim();
-        }
-        return input;
-    }
-
     @Override
     public CodegenType getTag() {
         return CodegenType.SERVER;
@@ -577,15 +568,6 @@ public class PhpSymfonyServerCodegen extends AbstractPhpCodegen implements Codeg
         }
     }
 
-    @Override
-    public String toEnumValue(String value, String datatype) {
-        if ("int".equals(datatype) || "float".equals(datatype)) {
-            return value;
-        } else {
-            return "\"" + escapeText(value) + "\"";
-        }
-    }
-
     /**
      * Return the regular expression/JSON schema pattern (http://json-schema.org/latest/json-schema-validation.html#anchor33)
      *
diff --git a/modules/openapi-generator/src/test/java/org/openapitools/codegen/dart/DartClientCodegenTest.java b/modules/openapi-generator/src/test/java/org/openapitools/codegen/dart/DartClientCodegenTest.java
index ae403621c0a..8570b527a18 100644
--- a/modules/openapi-generator/src/test/java/org/openapitools/codegen/dart/DartClientCodegenTest.java
+++ b/modules/openapi-generator/src/test/java/org/openapitools/codegen/dart/DartClientCodegenTest.java
@@ -85,4 +85,15 @@ public class DartClientCodegenTest {
         }
     }
 
+
+    @Test(description = "Enum value with quotes (#17582)")
+    public void testEnumPropertyWithQuotes() {
+        final DartClientCodegen codegen = new DartClientCodegen();
+
+        Assert.assertEquals(codegen.toEnumValue("enum-value", "string"), "'enum-value'");
+        Assert.assertEquals(codegen.toEnumValue("won't fix", "string"), "'won\\'t fix'");
+        Assert.assertEquals(codegen.toEnumValue("\"", "string"), "'\\\"'");
+        Assert.assertEquals(codegen.toEnumValue("1.0", "number"), "1.0");
+        Assert.assertEquals(codegen.toEnumValue("1", "int"), "1");
+    }
 }
diff --git a/modules/openapi-generator/src/test/java/org/openapitools/codegen/php/AbstractPhpCodegenTest.java b/modules/openapi-generator/src/test/java/org/openapitools/codegen/php/AbstractPhpCodegenTest.java
index a73cb73a76a..7ad989f0f88 100644
--- a/modules/openapi-generator/src/test/java/org/openapitools/codegen/php/AbstractPhpCodegenTest.java
+++ b/modules/openapi-generator/src/test/java/org/openapitools/codegen/php/AbstractPhpCodegenTest.java
@@ -176,4 +176,13 @@ public class AbstractPhpCodegenTest {
         CodegenProperty cp1 = cm1.vars.get(0);
         Assert.assertEquals(cp1.getDefaultValue(), "'VALUE'");
     }
+
+    @Test(description = "Enum value with quotes (#17582)")
+    public void testEnumPropertyWithQuotes() {
+        Assert.assertEquals(codegen.toEnumValue("enum-value", "string"), "'enum-value'");
+        Assert.assertEquals(codegen.toEnumValue("won't fix", "string"), "'won\\'t fix'");
+        Assert.assertEquals(codegen.toEnumValue("\"", "string"), "'\"'");
+        Assert.assertEquals(codegen.toEnumValue("1.0", "float"), "1.0");
+        Assert.assertEquals(codegen.toEnumValue("1", "int"), "1");
+    }
 }
diff --git a/modules/openapi-generator/src/test/java/org/openapitools/codegen/python/PythonClientCodegenTest.java b/modules/openapi-generator/src/test/java/org/openapitools/codegen/python/PythonClientCodegenTest.java
index 57a877d465f..3510bb3e894 100644
--- a/modules/openapi-generator/src/test/java/org/openapitools/codegen/python/PythonClientCodegenTest.java
+++ b/modules/openapi-generator/src/test/java/org/openapitools/codegen/python/PythonClientCodegenTest.java
@@ -530,4 +530,15 @@ public class PythonClientCodegenTest {
         assertFileContains(apiFile.toPath(), "_header_params['X-CUSTOM_CONSTANT_HEADER'] = 'CONSTANT_VALUE'");
         assertFileContains(apiFile.toPath(), "_query_params.append(('CONSTANT_QUERY_STRING_KEY', 'CONSTANT_QUERY_STRING_VALUE'))");
     }
+
+    @Test(description = "Enum value with quotes (#17582)")
+    public void testEnumPropertyWithQuotes() {
+        final PythonClientCodegen codegen = new PythonClientCodegen();
+
+        Assert.assertEquals(codegen.toEnumValue("enum-value", "string"), "'enum-value'");
+        Assert.assertEquals(codegen.toEnumValue("won't fix", "string"), "'won\\'t fix'");
+        Assert.assertEquals(codegen.toEnumValue("\"", "string"), "'\\\"'");
+        Assert.assertEquals(codegen.toEnumValue("1.0", "float"), "1.0");
+        Assert.assertEquals(codegen.toEnumValue("1", "int"), "1");
+    }
 }
diff --git a/samples/client/echo_api/php-nextgen-streaming/docs/Api/BodyApi.md b/samples/client/echo_api/php-nextgen-streaming/docs/Api/BodyApi.md
index 6c26bb843ff..c34d181d7a0 100644
--- a/samples/client/echo_api/php-nextgen-streaming/docs/Api/BodyApi.md
+++ b/samples/client/echo_api/php-nextgen-streaming/docs/Api/BodyApi.md
@@ -92,7 +92,7 @@ $apiInstance = new OpenAPI\Client\Api\BodyApi(
     // This is optional, `GuzzleHttp\Client` will be used as default.
     new GuzzleHttp\Client()
 );
-$body = "/path/to/file.txt"; // \Psr\Http\Message\StreamInterface
+$body = '/path/to/file.txt'; // \Psr\Http\Message\StreamInterface
 
 try {
     $result = $apiInstance->testBodyApplicationOctetstreamBinary($body);
@@ -148,7 +148,7 @@ $apiInstance = new OpenAPI\Client\Api\BodyApi(
     // This is optional, `GuzzleHttp\Client` will be used as default.
     new GuzzleHttp\Client()
 );
-$files = array("/path/to/file.txt"); // \Psr\Http\Message\StreamInterface[]
+$files = array('/path/to/file.txt'); // \Psr\Http\Message\StreamInterface[]
 
 try {
     $result = $apiInstance->testBodyMultipartFormdataArrayOfBinary($files);
@@ -204,7 +204,7 @@ $apiInstance = new OpenAPI\Client\Api\BodyApi(
     // This is optional, `GuzzleHttp\Client` will be used as default.
     new GuzzleHttp\Client()
 );
-$my_file = "/path/to/file.txt"; // \Psr\Http\Message\StreamInterface
+$my_file = '/path/to/file.txt'; // \Psr\Http\Message\StreamInterface
 
 try {
     $result = $apiInstance->testBodyMultipartFormdataSingleBinary($my_file);
diff --git a/samples/client/echo_api/php-nextgen-streaming/docs/Api/QueryApi.md b/samples/client/echo_api/php-nextgen-streaming/docs/Api/QueryApi.md
index 7e1a9f372b8..ae6ca517039 100644
--- a/samples/client/echo_api/php-nextgen-streaming/docs/Api/QueryApi.md
+++ b/samples/client/echo_api/php-nextgen-streaming/docs/Api/QueryApi.md
@@ -97,8 +97,8 @@ $apiInstance = new OpenAPI\Client\Api\QueryApi(
     // This is optional, `GuzzleHttp\Client` will be used as default.
     new GuzzleHttp\Client()
 );
-$datetime_query = new \DateTime("2013-10-20T19:20:30+01:00"); // \DateTime
-$date_query = new \DateTime("2013-10-20T19:20:30+01:00"); // \DateTime
+$datetime_query = new \DateTime('2013-10-20T19:20:30+01:00'); // \DateTime
+$date_query = new \DateTime('2013-10-20T19:20:30+01:00'); // \DateTime
 $string_query = 'string_query_example'; // string
 
 try {
diff --git a/samples/client/echo_api/php-nextgen/docs/Api/BodyApi.md b/samples/client/echo_api/php-nextgen/docs/Api/BodyApi.md
index f9b966860b7..e9fb3e75266 100644
--- a/samples/client/echo_api/php-nextgen/docs/Api/BodyApi.md
+++ b/samples/client/echo_api/php-nextgen/docs/Api/BodyApi.md
@@ -92,7 +92,7 @@ $apiInstance = new OpenAPI\Client\Api\BodyApi(
     // This is optional, `GuzzleHttp\Client` will be used as default.
     new GuzzleHttp\Client()
 );
-$body = "/path/to/file.txt"; // \SplFileObject
+$body = '/path/to/file.txt'; // \SplFileObject
 
 try {
     $result = $apiInstance->testBodyApplicationOctetstreamBinary($body);
@@ -148,7 +148,7 @@ $apiInstance = new OpenAPI\Client\Api\BodyApi(
     // This is optional, `GuzzleHttp\Client` will be used as default.
     new GuzzleHttp\Client()
 );
-$files = array("/path/to/file.txt"); // \SplFileObject[]
+$files = array('/path/to/file.txt'); // \SplFileObject[]
 
 try {
     $result = $apiInstance->testBodyMultipartFormdataArrayOfBinary($files);
@@ -204,7 +204,7 @@ $apiInstance = new OpenAPI\Client\Api\BodyApi(
     // This is optional, `GuzzleHttp\Client` will be used as default.
     new GuzzleHttp\Client()
 );
-$my_file = "/path/to/file.txt"; // \SplFileObject
+$my_file = '/path/to/file.txt'; // \SplFileObject
 
 try {
     $result = $apiInstance->testBodyMultipartFormdataSingleBinary($my_file);
diff --git a/samples/client/echo_api/php-nextgen/docs/Api/QueryApi.md b/samples/client/echo_api/php-nextgen/docs/Api/QueryApi.md
index 7e1a9f372b8..ae6ca517039 100644
--- a/samples/client/echo_api/php-nextgen/docs/Api/QueryApi.md
+++ b/samples/client/echo_api/php-nextgen/docs/Api/QueryApi.md
@@ -97,8 +97,8 @@ $apiInstance = new OpenAPI\Client\Api\QueryApi(
     // This is optional, `GuzzleHttp\Client` will be used as default.
     new GuzzleHttp\Client()
 );
-$datetime_query = new \DateTime("2013-10-20T19:20:30+01:00"); // \DateTime
-$date_query = new \DateTime("2013-10-20T19:20:30+01:00"); // \DateTime
+$datetime_query = new \DateTime('2013-10-20T19:20:30+01:00'); // \DateTime
+$date_query = new \DateTime('2013-10-20T19:20:30+01:00'); // \DateTime
 $string_query = 'string_query_example'; // string
 
 try {
diff --git a/samples/client/petstore/php-nextgen/OpenAPIClient-php/docs/Api/FakeApi.md b/samples/client/petstore/php-nextgen/OpenAPIClient-php/docs/Api/FakeApi.md
index 9f4cab79f2a..f9994a6971d 100644
--- a/samples/client/petstore/php-nextgen/OpenAPIClient-php/docs/Api/FakeApi.md
+++ b/samples/client/petstore/php-nextgen/OpenAPIClient-php/docs/Api/FakeApi.md
@@ -608,7 +608,7 @@ $apiInstance = new OpenAPI\Client\Api\FakeApi(
     // This is optional, `GuzzleHttp\Client` will be used as default.
     new GuzzleHttp\Client()
 );
-$body = "/path/to/file.txt"; // \SplFileObject | image to upload
+$body = '/path/to/file.txt'; // \SplFileObject | image to upload
 
 try {
     $apiInstance->testBodyWithBinary($body);
@@ -844,9 +844,9 @@ $int32 = 56; // int | None
 $int64 = 56; // int | None
 $float = 3.4; // float | None
 $string = 'string_example'; // string | None
-$binary = "/path/to/file.txt"; // \SplFileObject | None
-$date = new \DateTime("2013-10-20T19:20:30+01:00"); // \DateTime | None
-$date_time = new \DateTime("2013-10-20T19:20:30+01:00"); // \DateTime | None
+$binary = '/path/to/file.txt'; // \SplFileObject | None
+$date = new \DateTime('2013-10-20T19:20:30+01:00'); // \DateTime | None
+$date_time = new \DateTime('2013-10-20T19:20:30+01:00'); // \DateTime | None
 $password = 'password_example'; // string | None
 $callback = 'callback_example'; // string | None
 
diff --git a/samples/client/petstore/php-nextgen/OpenAPIClient-php/docs/Api/PetApi.md b/samples/client/petstore/php-nextgen/OpenAPIClient-php/docs/Api/PetApi.md
index 03a95d599d9..7cc169e98bb 100644
--- a/samples/client/petstore/php-nextgen/OpenAPIClient-php/docs/Api/PetApi.md
+++ b/samples/client/petstore/php-nextgen/OpenAPIClient-php/docs/Api/PetApi.md
@@ -514,7 +514,7 @@ $apiInstance = new OpenAPI\Client\Api\PetApi(
 );
 $pet_id = 56; // int | ID of pet to update
 $additional_metadata = 'additional_metadata_example'; // string | Additional data to pass to server
-$file = "/path/to/file.txt"; // \SplFileObject | file to upload
+$file = '/path/to/file.txt'; // \SplFileObject | file to upload
 
 try {
     $result = $apiInstance->uploadFile($pet_id, $additional_metadata, $file);
@@ -577,7 +577,7 @@ $apiInstance = new OpenAPI\Client\Api\PetApi(
     $config
 );
 $pet_id = 56; // int | ID of pet to update
-$required_file = "/path/to/file.txt"; // \SplFileObject | file to upload
+$required_file = '/path/to/file.txt'; // \SplFileObject | file to upload
 $additional_metadata = 'additional_metadata_example'; // string | Additional data to pass to server
 
 try {
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 87e2653832d..48d5bad2c16 100644
--- a/samples/client/petstore/php/OpenAPIClient-php/docs/Api/FakeApi.md
+++ b/samples/client/petstore/php/OpenAPIClient-php/docs/Api/FakeApi.md
@@ -669,7 +669,7 @@ $apiInstance = new OpenAPI\Client\Api\FakeApi(
     // This is optional, `GuzzleHttp\Client` will be used as default.
     new GuzzleHttp\Client()
 );
-$body = "/path/to/file.txt"; // \SplFileObject | image to upload
+$body = '/path/to/file.txt'; // \SplFileObject | image to upload
 
 try {
     $apiInstance->testBodyWithBinary($body);
@@ -905,9 +905,9 @@ $int32 = 56; // int | None
 $int64 = 56; // int | None
 $float = 3.4; // float | None
 $string = 'string_example'; // string | None
-$binary = "/path/to/file.txt"; // \SplFileObject | None
-$date = new \DateTime("2013-10-20T19:20:30+01:00"); // \DateTime | None
-$date_time = new \DateTime("2013-10-20T19:20:30+01:00"); // \DateTime | None
+$binary = '/path/to/file.txt'; // \SplFileObject | None
+$date = new \DateTime('2013-10-20T19:20:30+01:00'); // \DateTime | None
+$date_time = new \DateTime('2013-10-20T19:20:30+01:00'); // \DateTime | None
 $password = 'password_example'; // string | None
 $callback = 'callback_example'; // string | None
 
diff --git a/samples/client/petstore/php/OpenAPIClient-php/docs/Api/PetApi.md b/samples/client/petstore/php/OpenAPIClient-php/docs/Api/PetApi.md
index 527942413c6..3a832aa82a5 100644
--- a/samples/client/petstore/php/OpenAPIClient-php/docs/Api/PetApi.md
+++ b/samples/client/petstore/php/OpenAPIClient-php/docs/Api/PetApi.md
@@ -514,7 +514,7 @@ $apiInstance = new OpenAPI\Client\Api\PetApi(
 );
 $pet_id = 56; // int | ID of pet to update
 $additional_metadata = 'additional_metadata_example'; // string | Additional data to pass to server
-$file = "/path/to/file.txt"; // \SplFileObject | file to upload
+$file = '/path/to/file.txt'; // \SplFileObject | file to upload
 
 try {
     $result = $apiInstance->uploadFile($pet_id, $additional_metadata, $file);
@@ -577,7 +577,7 @@ $apiInstance = new OpenAPI\Client\Api\PetApi(
     $config
 );
 $pet_id = 56; // int | ID of pet to update
-$required_file = "/path/to/file.txt"; // \SplFileObject | file to upload
+$required_file = '/path/to/file.txt'; // \SplFileObject | file to upload
 $additional_metadata = 'additional_metadata_example'; // string | Additional data to pass to server
 
 try {
diff --git a/samples/client/petstore/php/psr-18/docs/Api/FakeApi.md b/samples/client/petstore/php/psr-18/docs/Api/FakeApi.md
index a63a2afacf0..5c75d390deb 100644
--- a/samples/client/petstore/php/psr-18/docs/Api/FakeApi.md
+++ b/samples/client/petstore/php/psr-18/docs/Api/FakeApi.md
@@ -669,7 +669,7 @@ $apiInstance = new OpenAPI\Client\Api\FakeApi(
     // This is optional, `Psr18ClientDiscovery` will be used to find http client. For instance `GuzzleHttp\Client` implements that interface
     new GuzzleHttp\Client()
 );
-$body = "/path/to/file.txt"; // \SplFileObject | image to upload
+$body = '/path/to/file.txt'; // \SplFileObject | image to upload
 
 try {
     $apiInstance->testBodyWithBinary($body);
@@ -905,9 +905,9 @@ $int32 = 56; // int | None
 $int64 = 56; // int | None
 $float = 3.4; // float | None
 $string = 'string_example'; // string | None
-$binary = "/path/to/file.txt"; // \SplFileObject | None
-$date = new \DateTime("2013-10-20T19:20:30+01:00"); // \DateTime | None
-$date_time = new \DateTime("2013-10-20T19:20:30+01:00"); // \DateTime | None
+$binary = '/path/to/file.txt'; // \SplFileObject | None
+$date = new \DateTime('2013-10-20T19:20:30+01:00'); // \DateTime | None
+$date_time = new \DateTime('2013-10-20T19:20:30+01:00'); // \DateTime | None
 $password = 'password_example'; // string | None
 $callback = 'callback_example'; // string | None
 
diff --git a/samples/client/petstore/php/psr-18/docs/Api/PetApi.md b/samples/client/petstore/php/psr-18/docs/Api/PetApi.md
index 568f6c4c6e9..1c7add7728a 100644
--- a/samples/client/petstore/php/psr-18/docs/Api/PetApi.md
+++ b/samples/client/petstore/php/psr-18/docs/Api/PetApi.md
@@ -468,7 +468,7 @@ $apiInstance = new OpenAPI\Client\Api\PetApi(
 );
 $pet_id = 56; // int | ID of pet to update
 $additional_metadata = 'additional_metadata_example'; // string | Additional data to pass to server
-$file = "/path/to/file.txt"; // \SplFileObject | file to upload
+$file = '/path/to/file.txt'; // \SplFileObject | file to upload
 
 try {
     $result = $apiInstance->uploadFile($pet_id, $additional_metadata, $file);
@@ -531,7 +531,7 @@ $apiInstance = new OpenAPI\Client\Api\PetApi(
     $config
 );
 $pet_id = 56; // int | ID of pet to update
-$required_file = "/path/to/file.txt"; // \SplFileObject | file to upload
+$required_file = '/path/to/file.txt'; // \SplFileObject | file to upload
 $additional_metadata = 'additional_metadata_example'; // string | Additional data to pass to server
 
 try {
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 c9bf53c92e2..e735fe2955f 100644
--- a/samples/server/petstore/php-symfony/SymfonyBundle-php/Controller/PetController.php
+++ b/samples/server/petstore/php-symfony/SymfonyBundle-php/Controller/PetController.php
@@ -255,7 +255,7 @@ class PetController extends Controller
         $asserts = [];
         $asserts[] = new Assert\NotNull();
         $asserts[] = new Assert\All([
-            new Assert\Choice([ "available", "pending", "sold" ])
+            new Assert\Choice([ 'available', 'pending', 'sold' ])
         ]);
         $asserts[] = new Assert\All([
             new Assert\Type("string"),
diff --git a/samples/server/petstore/php-symfony/SymfonyBundle-php/Model/EnumStringModel.php b/samples/server/petstore/php-symfony/SymfonyBundle-php/Model/EnumStringModel.php
index 5cf945fa9b0..6649451bc5c 100644
--- a/samples/server/petstore/php-symfony/SymfonyBundle-php/Model/EnumStringModel.php
+++ b/samples/server/petstore/php-symfony/SymfonyBundle-php/Model/EnumStringModel.php
@@ -44,9 +44,9 @@ use JMS\Serializer\Annotation\SerializedName;
  */
 enum EnumStringModel: string
 {
-        case AVAILABLE = "available";
-        case PENDING = "pending";
-        case SOLD = "sold";
+        case AVAILABLE = 'available';
+        case PENDING = 'pending';
+        case SOLD = 'sold';
 }
 
 
diff --git a/samples/server/petstore/php-symfony/SymfonyBundle-php/Model/Order.php b/samples/server/petstore/php-symfony/SymfonyBundle-php/Model/Order.php
index 6434aa9121f..2aa65aa47a7 100644
--- a/samples/server/petstore/php-symfony/SymfonyBundle-php/Model/Order.php
+++ b/samples/server/petstore/php-symfony/SymfonyBundle-php/Model/Order.php
@@ -84,7 +84,7 @@ class Order
      * @SerializedName("status")
      * @Type("string")
     */
-    #[Assert\Choice(["placed", "approved", "delivered"])]
+    #[Assert\Choice(['placed', 'approved', 'delivered'])]
     #[Assert\Type("string")]
     protected ?string $status = null;
 
diff --git a/samples/server/petstore/php-symfony/SymfonyBundle-php/Model/Pet.php b/samples/server/petstore/php-symfony/SymfonyBundle-php/Model/Pet.php
index deda58c617e..5f229ab6bb1 100644
--- a/samples/server/petstore/php-symfony/SymfonyBundle-php/Model/Pet.php
+++ b/samples/server/petstore/php-symfony/SymfonyBundle-php/Model/Pet.php
@@ -98,7 +98,7 @@ class Pet
      * @SerializedName("status")
      * @Type("string")
     */
-    #[Assert\Choice(["available", "pending", "sold"])]
+    #[Assert\Choice(['available', 'pending', 'sold'])]
     #[Assert\Type("string")]
     protected ?string $status = null;