How to call external script from X3D and get data back?

问题

I want to call external PHP script from X3D model. And get result to the variable in X3D. As I read, this maybe can be done on JS.

Script { 
            url [ "http://example.com/myScript.php",
                  "ecmascript: function foo() { ... }" ]
        }

Is it right? Are there any full code examples, will it work at all?

来源：https://stackoverflow.com/questions/63476349/how-to-call-external-script-from-x3d-and-get-data-back