What's wrong with this image resize function?

[Benpsycho]

Hi, I made a function which resiszes a image to a maximum size while keeping its proportion. But sometimes the images are still in the wrong proportion (sometimes they are squares). I can't find the bug... Can you help me?

//Resize Image Eingabe: resizeimg(Image, Pfad zum Image, Maxhöhe, Maxbreite, Neues Image, Neues Image Pfad);
function resizeimg($file, $path, $maxwidth = "200", $maxheight = "200", $newfile, $newpath)
{
  if(file_exists($path."/".$file)) {
    // Originalbild einlesen
    $h_img= imagecreatefromjpeg("$path/$file");
    $width= imagesx($h_img);
    $height= imagesy($h_img);

// Größe berechnen
if ($width < $height) {
    $qutient = $width / $height;
    $thb_y = $maxheight ; 
    $thb_x = $maxwidth * $qutient;
}
elseif ($width > $height) {
	    $qutient = $height / $width;
    $thb_x = $maxwidth; 
    $thb_y = $maxheight * $qutient;
}
elseif ($width == $height) {
	if ($maxwidth < $maxheight) {
		$thb_x = $maxwidth;
		$thb_y = $maxwidth;
	}
	elseif ($maxwidth > $maxheight) {
		$thb_x = $maxheight;
		$thb_y = $maxheight;
	}
	elseif ($maxwidth == $maxheight) {
		$thb_x = $maxwidth;
		$thb_y = $maxheight;
	}
}
$thb_x = round($thb_x);
$thb_y = round($thb_y);

   // Thumbnail im Speicher erzeugen
    $h_thb= imagecreate($thb_x, $thb_y);

// Verkleinern
imagecopyresized(
  $h_thb, 
  $h_img,
  0,
  0,
  0,
  0,
  $thb_x,
  $thb_y,
  $width,
  $height
);

// In File speichern 
imagejpeg($h_thb, $newpath."/".$newfile);

// Aufräumen
imagedestroy($h_thb);
imagedestroy($h_img);
 // Ausgabe
 return "<img src=\"".$newpath."/".$newfile."\">";
  }
else return "File does not exist!";

}

[groovything]

dont know, but this function should work for you:

function  resize($start_path,$end_path,$end_size,$type)  

		{
		$picture_location = "$start_path"; 
		$picture_save = "$end_path"; 
		$size = $end_size; // size in pixel you want the picture to come out height or width - whichever is bigger

	$im_size = GetImageSize ( $picture_location); 
	$imageWidth = $im_size[0]; 
	$imageHeight = $im_size[1]; 

	// - or with GD 2+ - 

	// do all your color allocations here 
	//$font_color_black = ImageColorAllocate( $im, 0,0,0); 

	if ($type == JPEG){
	$im2 = ImageCreateFromJPEG($picture_location); 
	}
	if ($type == PNG){
	$im2 = ImageCreateFromPNG($picture_location); 
	}
	if ($imageWidth>=$imageHeight) 
	{ 
	$width=$size; 
	$height = ($width/$imageWidth)*$imageHeight; 
	} 
	else 
	{ 
	$height=$size; 
	$width = ($height/$imageHeight)*$imageWidth; 
	} 
	$im = imageCreateTrueColor( $width, $height ); 

	ImageCopyResized ($im,$im2, 0, 0, 0, 0, $width, $height, $imageWidth, $imageHeight); 
	//Imagejpeg($im,'',100); to print to screen 

	if ($type == JPEG){
	Header("Content-type: image/jpeg"); 
	ImageJPEG($im,$picture_save,80); 
	}
	if ($type == PNG){
	Header("Content-type: image/png"); 
	ImagePNG($im,$picture_save,80); 
	}
	ImageDestroy($im); 
	ImageDestroy ($im2);
	}

if ($fupload_type == "image/x-png"){
	resize("$file_dir/$uploaded_img","$file_dir/thumb/$thumbnail_name","100","PNG");
	resize("$file_dir/$uploaded_img","$file_dir/$full_size_img_name","450","PNG");
}
if ($fupload_type == "image/pjpeg"){
	resize("$file_dir/$uploaded_img","$file_dir/thumb/$full_size_img_name","100","JPEG");
	resize("$file_dir/$uploaded_img","$file_dir/$full_size_img_name","450","JPEG");
}

Unfortunately you cannot use gif's but thats rare for people to upload anyways.

hope this helps...