add numeric values

[lincolnway]

I am attempting to add values that I am pulling from an array. Here is a really simple example.

$newAr = Array(200000, 300000, 400000, 600000);
$newArCount = count($newAr);
for($i=0; $i<$newArCount; $i++)
{
$getValue .= + $newAr[$i];
}

I am not getting the expected results. I want to add these values to equal a final numeric sum. I tried using the setype() function and still had no luck. Any help would be appreciated.

Thanks

[leatherback]

$getValue = 0;
$newAr = Array(200000, 300000, 400000, 600000);
foreach($newAr as $value)
{
$getValue+=$value;
}

[lincolnway]

Ok so that worked for adding them. What if I wanted to perform other numeric functions on them such as multiplying them.

What I really want to do is get the average of all the numbers.
Thanks a lot, I appreciate your help.

[leatherback]

$getValue = 0;
$newAr = Array(200000, 300000, 400000, 600000);
$i = 0;
foreach($newAr as $value)
{
$i++;
$getValue+=$value;
}
$mean = $getValue / $i;