<?
$size = getimagesize($_REQUEST['img']);
//print_r($size);
//exit();
if($_REQUEST['w'] == "") $_REQUEST['w'] = "100";
if($_REQUEST['h'] == "") $_REQUEST['h'] = "75";

$width = $size[0];
$height = $size[1];
$faktor = $width / $_REQUEST['w'];
$faktor2 = 1;
if(($width/$faktor) > $_REQUEST['w'] OR ($height/$faktor) > $_REQUEST['h']){
	$faktor2 = ($height/$faktor) / $_REQUEST['h'];
}
$destwidth = floor($width / ($faktor*$faktor2));
$destheight = floor($height / ($faktor*$faktor2));
//echo "ws: {$width} hs: {$height} wr: {$_REQUEST['w']} hr: {$_REQUEST['h']} wd: {$destwidth} hd: {$destheight}";
$r = 255; // Red color value (0-255)
$g = 255; // Green color value (0-255)
$b = 255; // Blue color value (0-255)
switch($size['mime']){
case "image/jpeg":
header("Content-type: {$size['mime']}");
	$src = imagecreatefromjpeg($_REQUEST['img']);
	$dest = imagecreatetruecolor($destwidth,$destheight);
	imagecopyresized($dest,$src,0,0,0,0,$destwidth,$destheight,$width,$height);
	imagejpeg($dest);
	imagedestroy($dest);
	imagedestroy($src);
	break;
case "image/gif":
header("Content-type: image/png");
	$src=ImageCreateFromGIF($_REQUEST['img']); 
	$dest=imagecreatetruecolor($destwidth,$destheight); 
	$th_bg_color = imagecolorallocate($dest, $r, $g, $b);
		
	imagefill($dest, 0, 0, $th_bg_color);
	imagecolortransparent($dest, $th_bg_color);
	ImageCopyResized($dest,$src,0,0,0,0,$destwidth,$destheight,$width,$height); 
	ImagePNG($dest); 
	imagedestroy($dest);
	imagedestroy($src);
	break;
case "image/png":
header("Content-type: {$size['mime']}");
	$src=ImageCreateFromPNG($_REQUEST['img']); 
	$dest=imagecreatetruecolor($destwidth,$destheight); 
	$th_bg_color = imagecolorallocate($dest, $r, $g, $b);
		
	imagefill($dest, 0, 0, $th_bg_color);
	imagecolortransparent($dest, $th_bg_color);
	ImageCopyResized($dest,$src,0,0,0,0,$destwidth,$destheight,$width,$height); 
	ImagePNG($dest); 
	imagedestroy($dest);
	imagedestroy($src);
	break;
}

?>