image resize problem

[emmx]

Hi All
I have a problem with some image resize code I am using on my site. It resizes ok but I want to keep the image in a maximum range. like max h or w.

This code now only uses a max width and the hight is kept in proportion with the width but I need it to do the same with the hight as well. If I have a max hight of 80 then it will change the width so the image keeps its correct aspect ratio

if(!isset($_GET['w'])) $w=100;											//	setting thumbnail width if missing
$img=@getimagesize("./".$fromfile);											//	getting image data
if(is_array($img)) {
	switch($img[2]) {
		case 1 :
		if(!(imagetypes() & IMG_GIF)) {
			if(!function_exists("imagecreatefromgif")) $nomanage=true;  //	gif is only readable in recent GD
			else {
				$outype="png";											//	so the thumb will be in png format
				$img['mime']="image/png";
			}
		} else $outype="gif";
		$imtype="gif";
		break;
		case 2 :
		if(!(imagetypes() & IMG_JPG)) $nomanage=true;
		$outype="jpeg";
		$imtype="jpeg";
		break;
		case 3 :
		if(!(imagetypes() & IMG_PNG)) $nomanage=true;
		$imtype="png";
		$outype="png";
		break;
		default :
		header("Content-type: image/png");								//	image format not supported
		echo imagepng(ErrorPNG("wrong img type"));						
		exit;
	}
	$ratio=floatval($img[0]/$w);										//	calculate proportional ratio
	$h=ceil($img[1]/$ratio);										//	proportional height
} else {
	header("Content-type: image/png");									//	image is not a recognizable format
	echo imagepng(ErrorPNG("not image type"));
	exit;
}

Thanks

[leatherback]

And the question is...? Assuming you have trouble with getting it to check which is the max:
(Note: Copied from one of my script: Varnames may not match

    // ***************** Get file details **************************

    $size = GetImageSize($tmp_picture);
    $aspectRat = (float)($size[1] / $size[0]);

    // ***************** Calculate new x/y size, maintaining original aspect ratio

    if( ($size[0] <= $new_max_width) && ($size[1] <= $new_max_width) )  // Image < max size
      {        
      copy($tmp_picture, $new_picture); 
      $newX = $size[0];
      $newY = $size[1];
      }
    else 
      {

      $width_ratio = $size[0] / $new_max_width;
      $height_ratio = $size[1] / $new_max_height;

    if($width_ratio >= $height_ratio)  // width needs to be reduced more
      {
      $newY = $new_max_width * $aspectRat;
      $newX = $new_max_width;
      }
    else
      {
      $newY = $new_max_height;
      $newX = $new_max_height * (1/$aspectRat);
      }


    //create the destination image resource. 

    $destImg = ImageCreateTrueColor($newX, $newY );

[edit]
In this script you can set bot the max hieght as the max width, which allows you to set different maximum values. You should just both tset them to the maximum dimensions you want.
[/edit]