In article <[EMAIL PROTECTED]>, [EMAIL PROTECTED]
says...
> Ok I think your definently going in the right direction - when I put this
> into my "series" I seem to be getting this message for each result:
> "Resource id #40" or some other number that in some way represents
> something? Any Clue?
ction which automatically selects the total of a
> column.
> >
> > -VolVE
> >
> > - Original Message -
> > From: "JohnP" <[EMAIL PROTECTED]>
> > To: <[EMAIL PROTECTED]>
> > Sent: Thursday, August 29, 2002 21:25
> > Sub
>
>I am still very new to PHP so things are still a little foreign to me -
what
>exactly is the SUM finction - I tried to locate one on both the PHP and
>MySQL site but found nothing!
http://www.mysql.com/doc/en/Group_by_functions.html#IDX1364
Well, it's close to "nothing" but if you study ho
Original Message-
From: JohnP [mailto:[EMAIL PROTECTED]]
Sent: Friday, August 30, 2002 3:10 PM
To: [EMAIL PROTECTED]
Subject: Re: [PHP] Average Number For Math Functions
I am still very new to PHP so things are still a little foreign to me - what
exactly is the SUM finction - I tried to locate
MAIL PROTECTED]>
> Sent: Thursday, August 29, 2002 21:25
> Subject: Re: [PHP] Average Number For Math Functions
>
>
> > Ok so how do I sum up an entire column in my db?
> > For example if one row is : 1 , the next is 2, and the next is 1 - I
need
> to
> > have
What database are you using?
MySQL has a SUM function which automatically selects the total of a column.
-VolVE
- Original Message -
From: "JohnP" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, August 29, 2002 21:25
Subject: Re: [PHP] Average Num
> Ok so how do I sum up an entire column in my db?
> For example if one row is : 1 , the next is 2, and the next
> is 1 - I need to
> have a total of 4 and the be able to divide by the num_rows
>
> The problem I ma having is the "inside" row addition
If you're doing it on values from a d
I can't seem to see a pre-built functions but here is one I just wrote in
my email client:
function average($numberArray) {
$sum = 0;
for ($i=0;$i
To: <[EMAIL PROTECTED]>
Sent: Friday, August 30, 2002 1:55 AM
Subject: [PHP] Average Number For Math Functions
Ok I looked at all the math f
if i remember 4th grade math class correctly...
$value)
{
$total += $array_of_the_numbers[$key];
++$count;
}
// wow, that's a toughie!
$average = $total / $count;
// then you could make it pretty
$pretty_average = number_format($average, 1);
?>
booyah. :)
dave
-Origina
Can't you just count the elements and then divide the total by the count?
It seems pretty obfuscating to consider a function that takes an unknown
number of elements, unless it were an array... still, seems pretty easy to
count and divide total... doesn't it?
-VolVE
> - Original Message ---
At 05:55 PM 8/29/02 , JohnP wrote:
>Ok I looked at all the math functions for PHP but saw no way of returning
>the average of a set of numbers - I plan on using this for a rating system
>- any help?
>
>--
>John
Nope - you'll have to 'roll your own' by looping though the set, or (if you
have v
Ok so how do I sum up an entire column in my db?
For example if one row is : 1 , the next is 2, and the next is 1 - I need to
have a total of 4 and the be able to divide by the num_rows
The problem I ma having is the "inside" row addition
"Martin Towell" <[EMAIL PROTECTED]> wrote in message
[
just sum them up and divide by the count - making sure to deal with a count
of zero
-Original Message-
From: JohnP [mailto:[EMAIL PROTECTED]]
Sent: Friday, August 30, 2002 10:56 AM
To: [EMAIL PROTECTED]
Subject: [PHP] Average Number For Math Functions
Ok I looked at all the math functio
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