How to get the values from a multi dimension array - php

Question

I have a result from my db query that's look like this when dump and the query is doing what is expected, but I am have a little problem getting the array values. I am using PHP PDO to get the result.
$result = $_stmt->fetchAll();
$row = count($result);
print_r($result);
Array ( [0] => Array ( [SUM(od_price * od_qty)] => 69.85 [0] => 69.85 )
[1] => Array ( [SUM(od_price * od_qty)] => 13.97 [0] => 13.97 )
) 69.8513.97
You can see that the result contains both an array and a string values. I have an option to get either the array or the string value. But I would rather to get the array values since the the string values are all togather. Can some one please explain what I am doing that's wrong in the foreach loop?
if($row == 2)
{
foreach ($result as $k)
{
echo $price_1 = $k[0][0]; // expected 69.85
echo $price_2 = $k[0][1]; // expected 13.97
}
unset($k);
}
I need to get the expected values, but instead I am getting the string values that are all togather.
After reviewing the solutions below, here is what I came up with that works well for what I wanted.
$result = $_stmt->fetchAll();
$row = count($result);
$price = "";
if($row == 2)
{
foreach ($result as $k)
{
$price .= $k[0].',';
}
}
// remove the last comma
$price = substr($price, 0, -1);
list($totalPurchase, $shippingCost) = explode(",",$price);
$orderAmount = $totalPurchase + $shippingCost;
echo 'The amount is: '.$orderAmount;

Answer 1

Try storing the values in an array instead of echoing them..
$price_1 = array(); $price_2 = array();
if($row == 2)
{
foreach ($result as $k)
{
array_push($price_1, $k[0][0]); // expected 69.85
array_push($price_2, $k[0][1]); // expected 13.97
}
// print_r($price_1); //should store all the price1s
// print_r($price_2); // should store all the price2s.
// uncomment to these lines to view array contents
}

Answer 2

Although you need to learn multidimensional arrays and foreach in general, to solve this particular task you need to use fetchAll with little addendum:
$result = $sth->fetchAll(PDO::FETCH_COLUMN, 0);
foreach ($result as $k)
{
echo $k;
}

Answer 3

replace your loop with this:
foreach ($result as $k) // iterate through all datasets
{
echo $k[0]; // echo price of dataset
}

Answer 4

It's already been answered, but i've seen in a comment that you want them seperate. So just concat a "<br>" or a new line space after your echo:
foreach ($result as $k)
{
echo $k[0]."<br>";
}