Crazy loop help

[Anon]

Hi,

I need to make a really strange loop..
I am attempting to generate html output which is a table with numbers in it..
I have a variable which I set to be how many rows the table will be, which i call $rows.
The columns will ALWAYS be the same however, which is 3 columns wide..I need to put numbers in the following fashion.

1 2 3
4 5 6
7 8 9
10 11 12
13 14 15
16 17 18

This is based on when i set $rows to 6..but i can't figure out math problem that will make my table look like this. Some kind of for loop (maybe a nest one) is needed i'm sure. But when I change $rows it will need to go on however... I.E.

19 20 21
22 23 24
25 26 27
....etc

any ideas?

[brandonschnell]

$rows = 6;
$cols = 3;

for ($x = 1; $x <= ($rows * $cols); $x++)
{
if (($x % $cols))
echo $x, " ";
else
echo $x, "\n";
}

[Anon]

You can do it as a nested array; I'd decouple the cell elements from the array loops:

$i=0;
for($r=0;$r<$rows;++$r)
{
for($c=0;$c<$cols;++$c)
{
echo (++$i).' ';
}
echo '<br>';
}

Or if you actually want to store the resulting array:

$i=0;
for($r=0;$r<$rows;++$r)
{
for($c=0;$c<$cols;++$c)
{
$array[$r][$c]=++$i;
}
}

[brandonschnell]

change the "\n" to "<BR>" for web pages