// GET ORIGINAL IMAGE DIMENSIONS
        list($width,$height) = getimagesize("sara.png");

        // GET NEW HEIGHT
        $new_height = $height / $width * $new_width;
        floor($new_height);

        // SET IMAGE PATH
        $image_path = "image-cache/sara_".$new_width."x".$new_height.".png";

        // CHECK IMAGE CACHE TO SEE IF IMAGE ALREADY EXISTS
        // THIS WILL REDUCE SERVER LOAD BY BYPASSING THE GD ROUTINE

        if(file_exists($image_path)) {
                $img = $image_path;
                }
        
        // IF IMAGE DOES NOT EXIST, CREATE IT
	      else {
	              $image = ImageCreateFromPNG("sara.png");
	              $new_image = ImageCreateTrueColor($new_width,$new_height);
	              
	              // COPY AND RESAMPLE THE ORIGINAL IMAGE TO CREATE THE NEW ONE
	              ImageCopyResampled($new_image,$image,0,0,0,0,$new_width,$new_height,$width,$height);
	              
	              ImagePNG($new_image,$image_path);
	              
	              }