How to loop inside loops? - php

Question

I have 2 table.
Table1 "Order"
orderid - customer_id
1001 - 1234
Table2 "Items"
no - orderid - items_code
1 - 1001 - 100
2 - 1001 - 200
3 - 1001 - 300
how to get results as below (in php):
Order # Items Customer ID
_________________________________________
1001 100, 200, 300 1234
_________________________________________
1002 400, 500, 600 1210
_________________________________________
1003 321, 654, 987 1256
_________________________________________
This is my previous coding:
<?
include("cat-config.php");
$resultdata=mysql_query("
(SELECT * FROM Order LIMIT 10)
");
echo "<table width=\"100%\" border=\"0\">
<tr>
<td>Order #</td>
<td>Items</td>
<td>Customer ID</td>
</tr>";
while($row=mysql_fetch_assoc($resultdata)){
echo "
<tr>
<td>$row[OrderID]</td>
<td>
**(I want loops items data on table "items": 100, 200,300 here)
</td>
<td>$row[CustomerID</td>
</tr>
";
}
mysql_close();
?>

Answer 1

$orders = array( 1001, 1002, 1003 );
for ( $i = 0; $i < count( $orders ); $i++ )
{
$items = getItemsForOrderId( $orders[$i] ); // SQL query or something
for ( $j = 0; $j < count( $items ); $j++ )
{
echo 'Order #' . $orders[$i] . ', Item ' . $items[$j];
}
}
Format to wanted output, and adjust to get the data correctly.
Update based on the changed question:
This could be one way to do it:
<?php
include 'cat-config.php';
$resultdata = mysql_query( 'SELECT * FROM Order LIMIT 10' );
echo "<table width=\"100%\" border=\"0\">
<tr>
<td>Order #</td>
<td>Items</td>
<td>Customer ID</td>
</tr>";
while ( $orderRow = mysql_fetch_assoc( $resultData ) )
{
echo " <tr>\n <td>" . $orderRow['orderid'] . "</td>\n";
echo " <td>";
$itemData = mysql_query( 'SELECT * FROM Items WHERE orderid = ' . $orderRow['orderid'] );
while ( $itemRow = mysql_fetch_assoc( $itemData ) )
{
echo $itemRow['items_code'] . ', ';
}
echo "</td>\n <td>" . $orderRow['customer_id'] . "</td>\n </tr>\n";
}

Answer 2

Easiest is to run it as 2 seperate queries:
SELECT * FROM Order
And while looping through results:
X = OrderID
SELECT * FROM Items WHERE OrderId = X