$data = isset($_GET['data']) ? $_GET['data'] : 'http://www.kuitao8.com';
  $size = isset($_GET['size']) ? $_GET['size'] : '400x400';
  $logo = isset($_GET['logo']) ? $_GET['logo'] : 'http://www.kuitao8.com/images/qr/logo.jpg';//中间那logo图
 
  $png = "http://img.kuitao8.com/uploads/QR/8e57f27c52289a0fe116c8df7ea8a671.png";
  $QR = imagecreatefrompng($png);//Warning: imagecreatefrompng() [function.imagecreatefrompng]: Unable to find the wrapper "https" - did you forget to enable it when you configured PHP? =
  //$QR = imagecreatefrompng('./chart.png');//外面那QR图
  if($logo !== FALSE){
   $logo = imagecreatefromstring(file_get_contents($logo));
  
   $QR_width = imagesx($QR);
   $QR_height = imagesy($QR);
       
   $logo_width = imagesx($logo);
   $logo_height = imagesy($logo);
          
   // Scale logo to fit in the QR Code
   $logo_qr_width = $QR_width/4;
   $scale = $logo_width/$logo_qr_width;
   $logo_qr_height = $logo_height/$scale;
   $from_width = ($QR_width-$logo_qr_width)/2;
   //echo $from_width;exit;
   imagecopyresampled($QR, $logo, $from_width, $from_width, 0, 0, $logo_qr_width, $logo_qr_height, $logo_width, $logo_height);
  }
  header('Content-type: image/png');
  imagepng($QR);
  imagedestroy($QR);
 ?>