<?phpif (isset($_FILES['upfile'])){ if (is_uploaded_file($_FILES['upfile']['tmp_name'])){$upfile=$_FILES["upfile"];$name = $upfile["name"];$type = $upfile["type"];$size = $upfile["size"];$tmp_name = $upfile["tmp_name"];$error = $upfile["error"];$ok=0;switch($type){ case 'image/pjpeg': $ok=1; break; case 'image/jpeg': $ok=1; break; case 'image/gif': $ok=1; break; case 'image/png': $ok=1; break;}if($ok==1&&$error=='0'){ if(move_uploaded_file($tmp_name,'up/'.$name)){ echo "上传成功！";}}else{ echo "上传失败，请检查格式";};}}?>