I would like to ask why the data is saved successfully, but the message box prompting that the save is successful does not pop up.

Question

Page debugging, display: properties of undefined(readin 'code'). Use echo.json_encode(['code'=>0,'msg'='Save successfully'])

Answer 1

The problem is solved. It was because the page encoding was wrong. Change it to utf8 and it will be fine.

Answer 2

Otherwise try exit or return