Native Ads tracking [PHP maybe?]

Hi guys!

I used to do a lot of affiliate marketing and I know how it works on the mobile world
My problem is with Native Ads marketing.

When I start new campaign on Content.Ad/MGID or any other native ads platform i need to put their events inside. right? for example:
{campaign_id}, {category_id}, {click_id} and etc...
so eventually my url will look similar to this:
website dot com/index.html?clickid={clickid}

But from the advertorial page the user needs to be redirected to google store or itunes.
How can I "cut" the part after the question mark and "paste" it on the following URL?

(why i'm saying it might be a php issue? I saw that some advertiser send their traffic into a redirect page with PHP ending and from this page the user gets redirected to itunes. but i'm not 100% sure it's connected)

I hope my question is clear.
Thanks is advance.