| ( ! ) Deprecated: Return type of Symfony\Component\Serializer\Tests\Fixtures\JsonSerializableDummy::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in E:\Program_Files\wamp64\www\print\vendor\symfony\serializer\Tests\Fixtures\JsonSerializableDummy.php on line 16 | ||||
|---|---|---|---|---|
| Call Stack | ||||
| # | Time | Memory | Function | Location |
| 1 | 0.0001 | 362672 | {main}( ) | ...\JsonSerializableDummy.php:0 |