PHP/mySQL multi-dimensional array or object oriented approach?

I have data that I want to pull from a mySQL database and I want to sort it in an organized way so I can pull it later. I want to sort it in a matter where i have CompanyID $companyid: productID $productid: productName = $Product, industryName = $industry etc

so essentially I want to have:

• CompanyID 1: ProductID 1: all the info about that specific product
• CompanyID 1: ProductID 2: all the info about that specific product

• CompanyID 1: ProductID 3: all the info about that specific product

• CompanyID 2: ProductID 1: all the info about that specific product

• CompanyID 2: ProductID 2: all the info about that specific product

etc etc

this is the while loop that pulls all the info, and where i will be storing it in either a multi-dimensional array or some object oriented class in PHP. either way, i'm not too sure how to go about doing it.

while ($row = mysql_fetch_array($result)){ 
                $CompanyName=$row['CompanyName'];
                $companyid=$row['companyid'];
                $Product=$row['Product'];
                $productid=$row['productid'];
                $Industry=$row['Industry'];
                $Link=$row['Link'];
                $Keywords=$row['Keywords'];
                $region=$row['region'];}

EDIT: I want to write a multi-dimensional array to capture all the data in an orderly manner. how would I go about writing that or is that even the best solution?

EDIT: right now i have this in the while loop:

 $companyIDArray[$companyid] = $productidArray[$productid] = $productInfoArray["CompanyName"]=$CompanyName;

and I am going to make one for each field. Is that the best way to do it?

You should be doing this in your SQL. Use an ORDER BY clause like so:

SELECT
    companyid
    ,productid
    ,etc...
FROM
    products
ORDER BY
    companyid,
    productid

 $data = array();
    while ($row = mysql_fetch_array($result)){ 

                $Industry=$row['Industry'];
                $Link=$row['Link'];
                $Keywords=$row['Keywords'];
                $region=$row['region'];}

 $data[$row['CompanyName'][$row['companyid']] = 
         array($row['Product'],$row['productid'], $Industry,$Link,$Keywords,$region );


}

print_r($data,true);

the above is untested code but it will give you an idea atleast how to do it.