counting post_vars

[Anon]

I fiqured out how to count all post_vars from a post, but having problems with just counting a select few.

I fiqured out how to count all post_vars from a post count($HTTP_POST_VARS)

But I am having problems count just a select few not the total... I even labelled the ones I like to count with form_favs_ at the beginning of each field to help..

Can someone point me in the right direction...

[Anon]

$count = 0;

if ( $HTTP_POST_VARS ) {
reset ( $HTTP_POST_VARS );
while ( list ( $key, $val ) = each ( $HTTP_POST_VARS ) ) {
if ( ereg ( "^form_favs_", $key ) ) {
$count++;
}

}

}

echo "Total count = $count";