[PHP] GET and POST variables name

[Dino Costantini]

i know it could be a stupid problem, but i need a help and i hope u could be generous 
with me :).
this is my code, it writes the list of POST and GET variables. 

<?
echo "GET:<BR>";
foreach($_GET as $parole)
{
 echo "Parola = $parole <br>";
}

echo "<br><br>POST:<BR>";
foreach($_POST as $parole)
{
 echo "Parola = $parole <br>";
}
?>

i want to write also the name of the variable, for example:
if i call my page so --->  index.php?id=2&a=4
it writes

    GET:
    Parola = 2 
    Parola = 4 
    
    
    POST:

I want it to write:

    GET:
    id = 2 
    a = 4 
    
    
    POST:

how can I do it?
thx for any help.