<?php
$newimage = imagecreatetruecolor(250,250);
echo "Assigning colors\n";
$colors = array (
0 => array(0xff, 0x00, 0x00),
1 => array(0xff, 0x80, 0x00),
2 => array(0xff, 0xff, 0x00),
3 => array(0x00, 0xff, 0x00),
4 => array(0x00, 0x00, 0xff),
5 => array(0x00, 0xff, 0xff),
6 => array(0xff, 0x00, 0xff));
foreach ($colors as &$color) {
	$color = imagecolorallocate($newimage,$color[0],$color[1],$color[2]);
	}
echo "Assigning pi\n";

$pi = "31415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679"
	."8214808651328230664709384460955058223172535940812848111745028410270193852110555964462294895493038196"
	."4428810975665933446128475648233786783165271201909145648566923460348610454326648213393607260249141273"
	."7245870066063155881748815209209628292540917153643678925903600113305305488204665213841469519415116094"
	."3305727036575959195309218611738193261179310511854807446237996274956735188575272489122793818301194912"
	."9833673362440656643086021394946395224737190702179860943702770539217176293176752384674818467669405132"
	."000568127145263560827785";
//from http://www.exploratorium.edu/pi/Pi10-6.html
echo "Digits of Pi available: " . strlen($pi);
$length_of_pi = strlen($pi);

for($i = 0; $i < $length_of_pi; $i++) {
	$current_pixel_y = floor($i/25);
	$current_pixel_x = $i % 25;
	
	$colorindex = $pi[$i] % 7;
	
	$new_x = $current_pixel_x * 10;
	$new_y = $current_pixel_y * 10;
	$end_x = $new_x + 10;
	$end_y = $new_y + 10;
	
	imagefilledrectangle($newimage,$new_x,$new_y,$end_x,$end_y,$colors[$colorindex]);
	}

imagepng($newimage,"C:\\Users\\Nic\\Desktop\\new-pi.png");
	
imagedestroy($newimage);