Added JSON_PRESERVE_ZERO_FRACTION (#14)

Data conversion to JSON: .0 decimal part of a number is kept

Author: francescozanoni

src/OpenApiValidation.php

@@ -210,7 +210,7 @@ public function validateResponseBody(ResponseInterface &$response, string $path,
                 }
             }
             $errors   = $notAdditionalOrNullErrors;
-            $response = $response->withBody((new StreamFactory())->createStream(json_encode($responseBodyData)));
+            $response = $response->withBody((new StreamFactory())->createStream(json_encode($responseBodyData, JSON_PRESERVE_ZERO_FRACTION)));
         }
         return $errors;
     }
@@ -352,8 +352,8 @@ private function validateObject(array $schema, array $value) : array
         $validator->setFormats($this->formatContainer);
         $schema = SchemaHelper::openApiToJsonSchema($schema);
         try {
-            $value  = json_decode(json_encode($value));
-            $schema = json_decode(json_encode($schema));
+            $value  = json_decode(json_encode($value, JSON_PRESERVE_ZERO_FRACTION));
+            $schema = json_decode(json_encode($schema, JSON_PRESERVE_ZERO_FRACTION));
             $result = $validator->dataValidation($value, $schema, 99);
         } catch (Exception $e) {
             return [[
@@ -453,7 +453,7 @@ private function setExampleResponse(ServerRequestInterface $request, ResponseInt
                 $exampleResponseBodyData = array_merge($exampleResponseBodyData, $requestBodyData);
             }
             $response = $response
-                ->withBody((new StreamFactory())->createStream(json_encode($exampleResponseBodyData)))
+                ->withBody((new StreamFactory())->createStream(json_encode($exampleResponseBodyData, JSON_PRESERVE_ZERO_FRACTION)))
                 ->withHeader('Content-Type', $mediaType.';charset=utf-8');
             if (is_numeric($responseObject->statusCode)) {
                 $response = $response->withStatus($responseObject->statusCode);
@@ -476,7 +476,7 @@ private function error(int $code, string $message, array $errors = []) : Respons
             $json['errors'] = $errors;
         }
         $response = $response->withHeader('Content-Type', 'application/json;charset=utf-8');
-        return $response->withBody((new StreamFactory())->createStream(json_encode($json)));
+        return $response->withBody((new StreamFactory())->createStream(json_encode($json, JSON_PRESERVE_ZERO_FRACTION)));
     }
 
     private function parseErrors(ValidationError $error, $name = null, $in = null) : array

src/OpenApiValidation/Property.php

@@ -27,7 +27,7 @@ public function __construct(string $name, string $in, bool $required, $schema, $
         $this->name     = $name;
         $this->in       = $in;
         $this->required = $required;
-        $this->schema   = json_decode(json_encode($schema));
+        $this->schema   = json_decode(json_encode($schema, JSON_PRESERVE_ZERO_FRACTION));
         $this->value    = $value ?? null;
         if (null == $this->value) {
             return;