What is the interaction mechanism between HTML-JavaScript/JQuery-PHP?

Question

I learned PHP by myself during this period and encountered many problems, including PHP-JavaScript not being able to pass values ​​directly, or AJAX calls, etc. Later I came to this conclusion, but I don’t Do you know if it is right? I hope an expert can give me some guidance.

Answer 1

You studied asp.net before, right? PHP generates html (including js). After js is run on the browser side, it can create a new request through ajax. There is not a long link between php and the browser