<?php
  define('SOI', pack('n', 0xFFD8));  // jpeg start marker
  define('EOI', pack('n', 0xFFD9));  // jpeg end marker
  
  class MovThumbnail
  {
      public $width;$// maximum thumbnail width
      public height; // maximum thumbnail height
  
      // initialize a new MovThumbnail object
      public function __construct($width\; =\; 100,$height = 100)
      {
          $this->width\; =$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 = '')
      {
          // locate the first SOI marker
          for (
            $fp\; =\; fopen($src, 'rb'), $bytes\; =\; null;$bytes != SOI && !feof($fp);$bytes = fread($fp,\; 2)\; );$// extract jepg image
          for (
            buffer = $bytes;$bytes != EOI && !feof($fp);$bytes = fread($fp,\; 2),$buffer .= $bytes\; );$// construct image from buffer
          img = imagecreatefromstring($buffer);$// retrieve image dimensions
          width = imagesx($img);$height = imagesy($img);$// determine if resize is necessary
          if((lowest = min($this->width\; /$width, $this->height\; /$height)) < 1)
          {
              // resize
              $sm\_width\; =\; floor($lowest * $width);$sm_height = floor($lowest\; *$height);
              $buffer\; =\; imagecreatetruecolor($sm_width, $sm\_height);\; imagecopyresized($buffer, $img,\; 0,0,\; 0,0,$sm_width, $sm\_height,$width, $height);\; imagedestroy($img);
              $img\; =$buffer;
          }
          
          // save to disk or return the open image handle
          if ($dest)\; \{\; imagejpeg($img, $dest,\; 100);\; imagedestroy($img);
          }
          else
          {
              return $img;\; \}\; \}\; \}\; ?>$