<?php
  class JpegThumbnail
  {
      public $width;$// maximum thumbnail width
      public height; // maximum thumbnail height
  
      // intialize a new Thumbnail object
      public function __construct($width\; =\; 50,$height = 50)
      {
          $this->width\; =$width;
          $this->height\; =$height;
          
      }
      // accept a source file location and return an open image handle or
      // save to disk if destination provided 
      public function generate($src,$dest = '')
      {
          // retrive image dimensions
          list($width,$height) = getimagesize($src);$// determine if resize is necessary
          if((lowest = min($this->width\; /$width, $this->height\; /$height)) < 1)
          {
              $tmp\; =\; imagecreatefromjpeg($src);
  
              // resize
              $sm\_width\; =\; floor($lowest * $width);$sm_height = floor($lowest\; *$height);
              $img\; =\; imagecreatetruecolor($sm_width, $sm\_height);\; imagecopyresized($img, $tmp,\; 0,0,\; 0,0,$sm_width, $sm\_height,$width, $height);\; imagedestroy($tmp);
          }
          // image is already thumbnail size and resize not necessary
          else
          {
              $img\; =\; imagecreatefromjpeg($src);         
          }
          
          // save to disk or return the open image handle
          if ($dest)\; \{\; imagejpeg($img, $dest,\; 100);\; imagedestroy($img);
          }
          else
          {
              return $img;\; \}\; \}\; \}\; ?>$