/test.php?cool=1&trash=0&id=110
$_GET['cool']==1
$_GET['trash']==0
$_GET['id']==110
$_REQUEST['cool']==1
$_REQUEST['trash']==0
$_REQUEST['id']==110

<form action="test.php" method="post"><input type="hidden" name="cool" value="1"><input type="hidden" name="trash" value="0"><input type="hidden" name="id" value="110"><input type="submit"></form>
$_POST['cool']==1
$_POST['trash']==0
$_POST['id']==110
$_REQUEST['cool']==1
$_REQUEST['trash']==0
$_REQUEST['id']==110