including value of key in another assoc array, possible ?

Hi, I'm getting details about a table in mysql. I then auto generate a form which represents that table. I want to be able to enter data, click submit and then return to the same form if validation on the input fails. To do this I need to dynamically insert the value as I do for everything else as such (the way I'm thinking) (NOTE, I only have one row as such: <td width="20%">{$dbrow.name} </td><td><input type="text" name="{$dbrow.name}" size="{$dbrow.size}" maxlength="{$dbrow.size}"></td></tr> ) value={$input.{$dbrow.name}} $input is an assoc array of the last inpu and $dbrow.name has the key for $input ... how can I dynamically do the above? Thanks, Peter