When PHP's json_encode is used to process Chinese, the Chinese will be encoded, how to correct it?

• When we use json_encodetime, you will find this situation

json_encode("tian jia cheng gong") Words written in English will not be converted to Unicode;

<?php
echo json_encode("tian jia cheng gong ");

//"tian jia cheng gong "

but

json_encode("添加成功") Words written in Chinese will be converted to Unicode;

<?php
echo json_encode("添加成功");

//"\u6dfb\u52a0\u6210\u529f"

---

Sometimes I just don’t want to convert Chinese to Unicode, here is a way:
that is JSON_UNESCAPED_UNICODE, it means that Json does not encode Unicode

<?php
echo json_encode("添加成功", JSON_UNESCAPED_UNICODE);

//"添加成功"

Tip: To learn more about json_encode, please click the link below
   ---> link