[SOLVED] Getting coordinates for a circle

[Michdd]

I've never done something like this specifically, but I have done a lot of other PHP math.. and I can't seem to figure this logic out. I'll have a certain number of items and I'll need to place this in a circle spaced evenly apart, I'll be using PHP GD, and I just need help getting a good concept of how to generate the coords for each item.

[Michdd]

Solution example:

 

$r = 20;

$intervals = 3;

$delta_theta = 2.0 * pi() / $intervals;

$theta = 0;

 

for($i = 0; $i < $intervals;$i++)

{

echo "(" . $r * cos($theta) . ", " . $r * sin($theta) . ")";

    $theta += $delta_theta;

}