Query Strings - detecting and accessing

Can any one tell me how to access a query string and how to test if it exists?

I know about using $_SERVER['QUERY_STRING'] but I want to just get the value at the end of the query string

eg - page.php?id=2 - just want the "2".

I am also having problems checking to see if the querystring exists in the first place. This is the code I have so far. If I manually append the query string in the address bar, then it works fine, jumps to the "else" statement etc. But without it it just fails.

$memid = $_SERVER['QUERY_STRING'];

if (!isset($memid))
{
printf("no query string");
}
else
{
printf($memid);
}

Thanks
WillowFae

You know you can access the querystring variables using:

$_GET[id]

(In the case of page.php?id=2)

This will give you the "2".

Then you can see if it exists using:



IF (!isset($_GET[id])){
echo "id = $_GET[id]";
} else {
echo "No id";
}



Other than that I don't really understand what you are asking.

http://www.php.net/manual/en/reserved.variables.php#reserved.variables.get

Bingo! No, that's fine, that was exactly what I was asking.

Thanks a lot :)

Glad i could be of help :D