[SOLVED] $_GET

[ngreenwood6]

I understand how to put something into the url through get

 

<a href="index.php?sort=desc">Descending</a>

 

The part I dont get is how do I make it universal so that I dont have to know what is going to be there already. For example if I want to add a page number to the end of this row i would do it like this:

 

<a href="index.php?sort=desc&page=1">Descending</a>

 

Now say for instance I didn't know what the url was going to be other than the fact that it was going to be index.php. How would I go about doing that? And if it was the first variable it would be with a ? instead of the & how can I make it know that it is going to be that?  Any help or links are appreciated. And please can someone make it easy to understand because I am a noob.

[MadTechie]

to get the QUERY_STRING use

$_SERVER['QUERY_STRING']

or each key/value use

foreach($_GET as $K => $V)
{
echo "Key:$K = $V<br>";
}

 

to append to the existing URL

try

$Q= (!empty($_SERVER['QUERY_STRING'])?"?":$_SERVER['QUERY_STRING']."&";

//add SORT=ASC
echo $Q."SORT=ASC";

[ngreenwood6]

I think that you have got it now. thanks for the help. I will try it out.