<?
// Define .GIF image before any includes to avoid other header infos to be set
header("Content-type: image/gif");

// DB connection
include_once("dbconnect.php");

// Sudoku image library
include_once("sudokuimage.php");

$step = 0;
$id = 0;
$size = 300;
$possibles = 0;
$gray = 1.0;
while(list($key, $value) = each($_GET))
{
  if (strtolower($key) == "id") $id = $value;
  if (strtolower($key) == "step") $step = $value;
  if (strtolower($key) == "size") $size = $value;
  if (strtolower($key) == "possibles") $possibles = $value;
  if (strtolower($key) == "gray") $gray = $value;
}

$result = mysql_query("SELECT ColCount, InsideTableWidth, PossibleBinMasks FROM sudo where id=".$id." and step=".$step);
 
if (mysql_num_rows($result) > 0) {
	$row = mysql_fetch_array($result, MYSQL_ASSOC);

  $PossibleBinMasks = $row["PossibleBinMasks"];
  $ColCount = $row["ColCount"];
  $InsideTableWidth = $row["InsideTableWidth"];

  $sudoku = Sudoku_CreateImage($size, $ColCount, $InsideTableWidth, $PossibleBinMasks, $gray, $possibles, true);
  // Output image
  imagegif($sudoku);

  imagedestroy($sudoku);
}

// Clean SQL result
mysql_free_result($result);

// Close DB connection
include_once("dbdisconnect.php");
?>