<!-- Collection of code snippets by Arne Vajhøj -->
<!-- posted to eksperten.dk, usenet and other places (2002-now) -->
<?php
// **** normal code ****
class OrderLine {
    private $no;
    private $descrip;
    public function __construct($no, $descrip) {
        $this->no = $no;
        $this->descrip = $descrip; 
    }
    public function getNo() {
        return $this->no;
    }
    public function getDescrip() {
        return $this->descrip;
    }
    public function toString() {
        return sprintf("%d %s\n", $this->no, $this->descrip);
    }
}

class Order {
    private $customer;
    private $lines;
    public function __construct($customer, $lines) {
        $this->customer = $customer;
        $this->lines = $lines;
    }
    public function getCustomer() {
        return $this->customer;
    }
    public function getLInes() {
        return $this->lines;
    }
    function toString() {
        $res = sprintf("%s\n", $this->customer);
        foreach($this->lines as $line) {
            $res .= $line->toString();
        }
        return $res;
    }
}

// build domain model
$orders = array(new Order('Hansen', array(new OrderLine(2000, 'mursten'), new OrderLine(3, 'poser cement'))),
                new Order('Jensen', array(new OrderLine(50, 'planker'))));
// test domain model
foreach($orders as $order) {
    echo $order->toString();
}

// **** code for those with strong dislike of OO ****

// please use associative array with keys 'no' and 'descrip' for order lines
// please use associative array with keys 'customer' and 'lines'

function orderline_tostring($orderline) {
    return sprintf("%d %s\n", $orderline['no'], $orderline['descrip']);
}

function order_tostring($order) {
        $res = sprintf("%s\n", $order['customer']);
        foreach($order['lines'] as $line) {
            $res .= orderline_tostring($line);
        }
        return $res;
}


// build domain model
$orders = array(array('customer' => 'Hansen', 'lines' => array(array('no' => 2000, 'descrip' => 'mursten'), array('no' => 3, 'descrip' => 'poser cement'))),
                array('customer' => 'Jensen', 'lines' => array( array('no' => 50, 'descrip' => 'planker'))));
// test domain model
foreach($orders as $order) {
    echo order_tostring($order);
}

?>