Http_post_vars

[yacoubisaac]

I have an HTML page with 2 hidden variables

<form name="sf" method="post" >
<INPUT TYPE="HIDDEN" NAME="cat" value="aaa" >
<INPUT TYPE="HIDDEN" NAME="subcat" value="bbb" >
</form>

when I click a link to a PHP page I get no values for the 2 hidden variables, this has always worked for me in the past but for some reason it has stopped. I am running 4.0.6.

Here is the php code.

$ycat = $HTTP_POST_VARS["cat"];
$ysubcat = $HTTP_POST_VARS["subcat"];

echo $ycat;
echo $ysubcat;