vue asynchronous submit php are two ways to pass value

1. First written in php file entry on a code that allows asynchronous submit

 

 header("ACCESS-CONTROL-ALLOW-ORIGIN:*");

2. There are two ways to submit vue data asynchronously to php (I tried two ways)

The first:

 

 

 

 The second:

 

 

 

 

 3.jsonp format

 

 The return value is php

 

 jsonp format