Sometime ago, I made a function to make any angle in the form between 0 and 360
here is the function

function normalize_angle($n){
	while($n >= 360){
		$n -=360;
	}
	while($n < 0){
		$n +=360;
	}
	return $n;
}

I wasn't going to do any update with it until I found loops are slow. Especially when the angle are huge

function normalize_angle($n){
	if($n >= 360){
		$n -= 360*floor($n/360);
	}elseif($n < 0){
		$n += 360*abs(floor($n/360));
	}
	return $n;
}

Kinda faster. So I started using that for few moment.

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artistic web page pursuit me to say "WTF" and close the window, but I can't denial the signature is a great place for ad placement.