<?

?>
<?php
function img_resize($src, $dest, $width, $height)
{
  if (!file_exists($src)) return false;

  $size = getimagesize($src);

  if ($size === false) return false;

  $format = strtolower(substr($size['mime'], strpos($size['mime'], '/')+1));
  $icfunc = "imagecreatefrom" . $format;
  if (!function_exists($icfunc)) return false;

  $x_ratio = $width / $size[0];
  $y_ratio = $height / $size[1];

  $ratio       = min($x_ratio, $y_ratio);
  $use_x_ratio = ($x_ratio == $ratio);

  $new_width   = $use_x_ratio  ? $width  : floor($size[0] * $ratio);
  $new_height  = !$use_x_ratio ? $height : floor($size[1] * $ratio);
  $new_left    = $use_x_ratio  ? 0 : floor(($width - $new_width) / 2);
  $new_top     = !$use_x_ratio ? 0 : floor(($height - $new_height) / 2);

  $isrc = $icfunc($src);
  $idest = imagecreatetruecolor($width, $height);

  imagefill($idest, 0, 0, 0x000000);
  imagecopyresampled($idest, $isrc, $new_left, $new_top, 0, 0, 
    $new_width, $new_height, $size[0], $size[1]);

  imagejpeg($idest, $dest, 100);
  imagedestroy($isrc);
  imagedestroy($idest);

  return true;
}
?>