(PHP 4 <= 4.3.0, PECL dbplus >= 0.9)
dbplus_next — Get next tuple from relation
$relation
   , array &$tuple
   ) : int
   Reads the data for the next tuple for the given
   relation, makes it the current tuple and will pass
   it back as an associative array in tuple.
  
   Returns DBPLUS_ERR_NOERR on success or a db++ error
   code on failure. 
  
此函数是实验性的。此函数的表象,包括名称及其相关文档都可能在未来的 PHP 发布版本中未通知就被修改。使用本函数风险自担。