获取一个URL并添加/？var0 = val0＆var1 = val1而不离开页面而没有用户输入

Question

OK - Thanks for taking the time!

I am using WP on a CentOS 6 server. I have a plug in with the functions, I have a function that makes a DB call and populates relevant products based on $_GET variables, I took from one of the other project and modify it so it works! But here where I run in to the problem, I go to the main page and i have a function that gets called first, goes through the URL name and determines the categories id and then from that I need to pass that to the URL so that when the next function then calls $_GET["category_id"] and that ID is there and ready to be use and it it does its magic. (all staying on the same page no refreshing or anything)

So I need to put that on the URL as the page is being loaded and so that I can use it (Again i get the variables from a function that is doing all the work with the address for relevant info,) So how do i do it? HTML or PHP, and a straight forward way no extra installs would be nice :)

Edit 1: So is there something then I could integrate in that would be simple and straight forward that would allow me to do a mini refresh and get the right variables in place, never used JavaScript but seams to be getting or something in php ... Ideas are welcome :)

Answer 1

You can with javascript and the history API

The only way you can change the url without actually redirecting the user is by using the pushState method.

e.g. open a console and copy and paste this:

var stateObj = { foo: "bar" };
history.pushState(stateObj, "changes url to stackoverflow.com/yes-you-can", "/yes-you-can");

You won't be redirected, and the url of your browser will change unless, basically, you're using IE 9 or less. You can see a demo of this on html5demos.com