Selects Dependientes (combobox)

[Patriarka]

Código PHP:

<?
    function cargarCiudades($id_country=0)
    {
$filter ='';
if($id_country>0)
$filter = 'and country="$id_country"';
        $consulta = parent::consulta("SELECT Name FROM capitulo WHERE Province = '".$this->code."' {$filter}"); 
 
?>