我如何发送一个http GET请求与链接点击与php后inc /减少的变量

Question

I have build a php page that queries a Mysqli database with a GET request. One of the GET variables ( &day= ) queries the datas by date. If day=0 it queries the actual date. If day = 1 it queries date-1, and so on. This works fine with 2 buttons mixing javascript and php form + buttons. (code pasted somewhere and modified to my needs)

Today i added some "cosmectics" to my page. I added some folder like links.

I'm stucked in that i can't find how to change the day variable by clicking on the + and - html links...

My page to be more clear...

The link code : echo "<li><a href='".$_SERVER['PHP_SELF']."?rucher=".$rucher_nr."'><span>-</span></a></li>"; Thanks,

Answer 1

I finally found a pure php solution using a session variable i'm incrementing ou decrementing through 2 links and a GET post. I also modified my SQL query to query by DATE and not with the INTERVAL query.

Sorry for bandwidth...