AND trans.tran_date <= '$date_to'";
if ($_POST['customer_id'] != reserved_words::get_all())
- $sql .= " AND trans.debtor_no = '" . $_POST['customer_id'] . "'";
+ $sql .= " AND trans.debtor_no = ".db_escape($_POST['customer_id']);
if (isset($_POST['filterType']) && $_POST['filterType'] != reserved_words::get_all())
{