How to display sum of row data in view using codeigniter?

Question

This is my view. How can I calculate sum of rows using view without using model and controller

foreach($requests as $request):
<?php echo SUM($request->unit_price) ?>
<?php  endforeach; ?>

Answer 1

foreach($requests as $request){
$data[]=$request->unit_price;
}

now $data array contains all the unit prices.

echo array_sum($data);

and you get your answer.

Answer 2

$sum = 0;
foreach ($requests as $request):
    $sum += $request->unit_price;
endforeach;
echo $sum;