[Query before parameter passed by php]

I'm tryng to pass a parameter from php!

This is php code:

$controls = array(    'CATEGORIA' => array($idcategoria));$report = $c->reportService()->runReport('/reports/interactive/Report', 'html', null, null,$controls);[/code]

This is query:

select * from xxx where x=${CATEGORIA}

This is error log:

SQL query string: SELECT x,y,z from xxx WHERE x=?

DEBUG JRJdbcQueryExecuter,pool-5-thread-66:569 - Parameter #1 (CATEGORIA of type java.lang.String): 3

3 is a correct value!!!

Why parameter doesn't "pass" to sql?