Difference between toJson method and jsonSerialize method?

Question

When I looked at the Illuminate\Support\MessageBag class method, the class looked like this: {Code...} Could you please tell me, seniors, what is the difference between the toJson method and the jsonSerialize method? When will it be called implicitly?

天蓬老师 · Answer

Refer to the document: http://php.net/manual/zh/json...
Upload the code:

class j implements JsonSerializable{
    public function jsonSerialize(){
        return "Hello world!";
    }
}
echo json_encode(new j());

JsonSerializable itself specifically serves json_encode serialization, and toJson is just the Jsonable method of laravel.

In other words, when you use json_encode to serialize this object, the jsonSerialize method will be called.

And your toJson usually just encapsulates the json_encode function, just for semantics.

phpcn_u1582 · Answer

Like this?

 public function jsonSerialize()
    {
        return $this->toArray();
    }

public function toJson($options = 0)
    {
        return json_encode($this->jsonSerialize(), $options);
    }

PHP中文网 · Answer

I don’t know much about it, so I searched it for you:
http://www.cnblogs.com/gniele...

phpcn_u1582 · Answer

Thanks for the invitation!

Because I have never used larval, can you post the specific code of toJson method and jsonSerialize method