Adding up array elements?

[Anon]

I've got a text based file thathas been put in an array to be displayed on a page. How would I go about adding up all the last elements in each row of that array?

[Anon]

A for loop would work...

$total = 0;
for ($i=0; $i < sizeof($array); $i++) {
$total = $total + $array[$i][10];
}

Don't quote me on that, I just wrote it while eating lunch. Of course replace $array[$i][10] with the element you want. That of course assumes you are using a 2D array already. If not, just throw in an explode for each of your rows and grab the last value.

$columns = explode(",", $array[$i]);
$total = $total + $columns[10];

Hope that helps, sorry if I misunderstood.

Tim Frank

[Anon]

<pre>Beer Quan Ind Price Total
Hoegaarden Grand Cru, 12, 0.99, 11.88

Sol, 12, 1.06, 12.72

Sol, 24, 1.06, 25.44</pre>

Above is more or less what I have output, I need to add up the subtotals (the last number on each line data[3]). When I put your code in I get a number like 00613 that goes down everytime something is added...

Any ideas?

[Anon]

...I was imply trying to make the data easier for you to read!

[Anon]

You might have to use the strval() or another function in the string list to convert the string values to numbers. I alse remember having to explicitly use the function for number formatting when dealing with decimals. Has been a while since I have done that, and I would have to dig up some old code to find it.

Tim Frank