Query string for keywords sent by Google when someone clicks on AdSense link

[aliweb]

Hello,


When you search something on Google and clicks the URL, then the website whose URL was clicked can see which keywords that user searched when he was referred by Google.
I mean if you have a PHP or some other script you can check REFERER URL and in that URL will be keywords sent as query string. Google sends these keywords in query string "q"
My question is does anybody know if Google sends keywords or other code when someone clicks on an ad? Do you know which query string Google sends for adsense?


Thanks