Noob Question: Adding values of an array togther.

[ryandarin]

Hi, Im sure there is an easier way to do this then how I am, so what would be the best/easiest way to add the numbers 1-100 (For example adding 1-10 would be 1+2+3+4+5+6+7+8+9+10 = 55) The way I was trying to do it was by using [code]<? foreach (range(0, 100) as $range) { ;
}[/code] Then im not sure how to add the values to one another, someone help a noobie out :D
Please tell me if you need more information or anything.

[Jessica]

php.net/array_sum

or:
[code]$sum = 0;
foreach (range(0, 100) as $range) {
  $sum = $sum+$range;
}
print $sum;[/code]

ps: good use of range.

[ryandarin]

[quote author=jesirose link=topic=123230.msg509059#msg509059 date=1169272328]
php.net/array_sum

or:
[code]$sum = 0;
foreach (range(0, 100) as $range) {
   $sum = $sum+$range;
}
print $sum;[/code]

ps: good use of range.
[/quote]
Thanks so much!
Sorry to be a bother again, but I have another question. Now im trying to add the squares of each number togther, yet this doesn't seem to be working correctly. ([i]Example of this again would be 1² + 2² + ....+ 10² = 385[/i])
[code]
$sum = 0;
foreach (range(0, 100) as $range) {
  $sum = $sum+pow($range, 2);
  }

[/code]

[Jessica]

What isn't working correctly?

I'd do[code]
$sum = 0;
foreach (range(0, 100) as $range)
  $sum = $sum+($range*$range);
//If you wanted to check each one as it goes
// print $sum.'<br />';
}
//or possibly
$nums = array();
for($i=0, $i<=100; $i++){
  $nums[] = $i*$i;
}
print array_sum($nums);
[/code]

Are we doing math homework? :-P

[ryandarin]

[quote author=jesirose link=topic=123230.msg509193#msg509193 date=1169313535]
Are we doing math homework? :-P
[/quote]
Ok I guess it was woring all along, I must have made a mistake the first time I ran it, and no, not math homework :P. I thought doing the problems here http://projecteuler.net/ would be a good way to learn/practice php.

[Jessica]

No problems. It was probably a syntax error or something.
My favorite way to practice is to make games - much funner than math.  Here's a list of great games fit for programming: http://www.atariarchives.org/basicgames/index.php