getting order list simple php/sql query

getOrder.php

public function getOrderList() {
    
    if ( ! empty( $_SESSION['userSession'] ) ) {
        
        $values = array( ":uid" => $_SESSION['userSession'] );
        $stmt = $this->conn->prepare("SELECT * FROM tbl_orderlist WHERE CustomerID = :uid");
        $stmt->execute($values);
        $row = $stmt->fetchAll();

        // Uncomment this to debug
        // echo "<pre>";
        // print_r( $row );

        return $row;
    }

}