บทที่ 34 แสดงข่าวจาก RSSthai ด้วย AJAX

function getimage($itemlink, $imagedir, $imageresize, $imagewidth, $imageheight) {
  $parsedlink = parse_url($itemlink);
  list($tx,$rx) = split("&",$parsedlink["query"]);
  list($t,$type) = split("=",$tx);
  list($r,$rid) = split("=",$rx);
  $urlquery = "http://www.rssthai.com/images/?t=$type&r=$rid";
  if (! (strpos($itemlink,"mreader.php") === false)) $urlquery = "http://www.rssthai.com/images/?u=$type&r=$rid";
  
  if (! file_exists($imagedir)) {
    mkdir($imagedir);
  }
  
  $imagefilename = $imagedir.$type."_".$rid."_" . $imagewidth . "x" . $imageheight .".jpg";
  
  if (! file_exists($imagefilename)) {
    $imgContents = null;
   
    $fileHandle = @fopen($urlquery, "r");
    $fileuri = fread($fileHandle, 8192);
    fclose($fileHandle);

    $fileHandle = @fopen($fileuri, "rb");

    if($fileHandle) {
      while (!feof($fileHandle)) {
        $imgContents .= fread($fileHandle, 8192);
      }
      fclose($fileHandle);
    
      if ($imgContents) {
        if ($imageresize==false || function_exists("imagecreatefromstring")==false) {
          $handle = fopen($imagefilename, "wb");
          fwrite($handle, $imgContents);
          fclose($handle);
        } else {
          $source = imagecreatefromstring($imgContents);
          $imageX = imagesx($source);
          $imageY = imagesy($source);
          if ($imagewidth >= $imageX) {
            $handle = fopen($imagefilename, "wb");
            fwrite($handle, $imgContents);
            fclose($handle);
          } else {
            $thumbX = $imagewidth;
            $thumbY = (int)(($thumbX*$imageY) / $imageX );
            $dest = imagecreatetruecolor($thumbX, $thumbY);
            imagecopyresampled ($dest, $source, 0, 0, 0, 0, $thumbX, $thumbY, $imageX, $imageY);
            imagejpeg($dest,$imagefilename,75);
            imagedestroy($dest);
          }
          imagedestroy($source);
        }
      }
    }
  }

  return $imagefilename;
}

  echo '<td class=\"rssthai_news_td\"><div class="rssthai_news_image"><img src="../rssthai/'.getimage($rss[$i][link][data], "./", false, $imagewidth, $imageheight).'" alt="" /></div><div class="rssthai_news_detail"><a href="'.$rss[$i][link][data].'" target="_blank">'.$rss[$i][title][data]."</a></div></td> ";