Excel generation from database using PEAR - php

Question

I have a mysql table like this
product | date | price
mobile | jan-14| 150
laptop | jan-14| 480
mobile | feb-14| 172
laptop | feb-14| 389
By using below code i got an output like this
product |jan 14 |feb 14|
mobile | 150 | 172 |
laptop | 480 | 389 |
My PHP code(PEAR)
<?php writer, query fetching, worksheet,workbook, etc..on here
$product=array();
$date1=array();
$price=array();
while($rr=mysql_fetch_array($result))
{
$col=0;
$product[$rr['product']]=$rr['product'];
$date1[$rr['date']]=$rr['date'];
$price[$rr['prodcut']][$rr['date']]=$rr['price'];
}
$row=1;
$col=1;
foreach($date1 as $tkey=>$t)
{
$worksheet->write($row,$col++,$t);
}
$row=2;
foreach($product as $dkey=>$d)
{
$col=0;
$worksheet->write($row,$col++,$d);
foreach($date1 as $tkey=>$t)
{
$worksheet->write($row,$col++,$price[$d][$t]);
}
$row++;
}
$workbook->close();
?>
But,I need an output along with total of product wise and date wise like below,
product |jan 14 |feb 14|Prod total
mobile | 150 | 172 | 322
laptop | 480 | 389 | 869
date total| 630 | 561 |
could anyone help me? Thanks advance.

Answer 1

Would be like this:
foreach($product as $dkey=>$d)
{
$col=0;
$worksheet->write($row,$col++,$d);
$total = 0;
foreach($date1 as $tkey=>$t)
{
$worksheet->write($row,$col++,$price[$d][$t]);
$total += $price[$d][$t];
}
$worksheet->write($row,$col++,$total);
$row++;
}