<?
header ("Content-type: image/png"); 

// This script outputs pixel.
// Syntax:
// <td background=http://www.server.com/pxl.php?r=50&g=50&b=50> </td> 
// or like:
// <td background=http://www.server.com/pxl.php?s=pink> </td> 

// Numbers are to be from 0 to 255
// To-do: 1) mode for hex numbers
// 2) mode for safe web palette mode

class pxl {
var $r;
var $g;
var $b;
var $pixel;
var $image;
     function pxl () {
         $this->set_pixel();
	}
     function set_pixel () {
         $this->image=imagecreate(100,100);
	//get colors
	 $this->get_colors();
	//it's our pixel
	 $this->pixel=imagecolorallocate($this->image, $this->r, $this->g, $this->b); 
         imagefill ( $this->image, 1, 1, $this->pxl);
	// send image to browser
	imagepng($this->image); 
	// After sending - destroy image freeing resources	imagedestroy($this->image); 

	}
     function get_colors () {
global $r, $g, $b,$s;  

// get colors AS IS
   $this->r=$r;
   $this->g=$g;
   $this->b=$b;

// correct a lil

if (!strlen($r)) $this->r=0;
if (!strlen($g)) $this->g=0;
if (!strlen($b)) $this->b=0;
        // antihack - say no to negative numbers
	$this->r=(int)(abs($r)%255);
	$this->g=(int)(abs($g)%255);
	$this->b=(int)(abs($b)%255);
if (strlen($s)>0) {$this->setcolors ($s);}

                  }
function setcolors ($col) {
	switch ($col) {
	case 'black':
        $this->r=0; 
	$this->g=0;
	$this->b=0;
	break;

	case 'white':
        $this->r=255; 
	$this->g=255;
	$this->b=255;
	break;

	case 'pink':
        $this->r=255; 
	$this->g=0;
	$this->b=255;
	break;

	case 'red':
        $this->r=255; 
	$this->g=0;
	$this->b=0;
	break;

	case 'blue':
        $this->r=0; 
	$this->g=0;
	$this->b=255;
	break;

	default:
        $this->r=255; 
	$this->g=0;
	$this->b=255;
		        } 
	}  



}


              $pixel=new pxl;
?>