Question

I have an array coming from my database I want to format and display with php

Array ( 
  [customer] => Array ( 
    [customer_id] => 1 
    [firstname] => Mitchell 
    [lastname] => Bray 
    [order_id] => 3 
    [date_added] => 2012-01-17 11:22:30 
    [name] => iPod Shuffle 
    [quantity] => 1 
  ) 
)
Array ( 
  [customer] => Array ( 
    [customer_id] => 1 
    [firstname] => Mitchell 
    [lastname] => Bray 
    [order_id] => 3 
    [date_added] => 2012-01-17 11:22:30 
    [name] => iPod Touch 
    [quantity] => 1 
  ) 
)  
Array ( 
  [customer] => Array ( 
    [customer_id] => 1 
    [firstname] => Mitchell 
    [lastname] => Bray 
    [order_id] => 14 
    [date_added] => 2012-01-25 08:39:54 
    [name] => iPod Touch 
    [quantity] => 2 
  ) 
) 
Array ( 
  [customer] => Array ( 
    [customer_id] => 1 
    [firstname] => Mitchell 
    [lastname] => Bray 
    [order_id] => 14 
    [date_added] => 2012-01-25 08:39:54 
    [name] => HTC Touch HD 
    [quantity] => 3 
  ) 
) 
Array ( 
  [customer] => Array ( 
    [customer_id] => 2 
    [firstname] => M 
    [lastname] => Bray 
    [order_id] => 15 
    [date_added] => 2012-02-02 14:33:45 
    [name] => HTC Touch HD 
    [quantity] => 1 
  ) 
)

I want to display something like:

Mitchell Bray
iPod Shuffle qty 3
iPod Touch qty 3
HTC Touch HD qty 3

M Bray
HTC Touch HD qty 1

added sql query if that helps

$sql =  "
    select c.customer_id, c.firstname, c.lastname, 
           o.order_id, o.date_added, 
           op.name, op.quantity
      from `" . DB_PREFIX . "customer` c
      inner join `" . DB_PREFIX . "order` o on o.customer_id = c.customer_id
      inner join `" . DB_PREFIX . "order_product` op on o.order_id = op.order_id";

Answer 1

You should use group by.Modify query like this:

$sql =  "select c.customer_id, c.firstname, c.lastname, 
                   o.order_id, o.date_added, 
                   op.name, sum(op.quantity)
            from `" . DB_PREFIX . "customer` c
            inner join `" . DB_PREFIX . "order` o on o.customer_id = c.customer_id
            inner join `" . DB_PREFIX . "order_product` op on o.order_id = op.order_id
group by c.customer_id, op.name
";

Check Updated Answer:

$sql =  "select c.customer_id, c.firstname, c.lastname, op.name, sum(op.quantity)
                from `" . DB_PREFIX . "customer` c
                inner join `" . DB_PREFIX . "order_product` op on o.order_id = op.order_id
    group by c.customer_id, op.name
    ";

Update 2:

$sql =  "select *, sum(quantity)  from (select c.customer_id, c.firstname, c.lastname, op.quantity     from `" . DB_PREFIX . "customer` c
                inner join `" . DB_PREFIX . "order` o on o.customer_id = c.customer_id
                inner join `" . DB_PREFIX . "order_product` op on o.order_id = op.order_id
) result
    group by result.customer_id, result.name
    ";