Description:
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The mysql API functions mysql_row_tell and mysql_row_seek are not ported to the mysqli libary.
I believe this is a shame, because currently it isn't possible to create a function which uses a mysql_result but does not influence the code outside of the function.

I do not see the fact that, mysqli_row_seek would return a resource and not an actual rownumber, as a problem.

P.S. If it is generaly agreed that this is a usefull feature, but there are no volenteers to add the function, I volenteer myself.

Reproduce code:
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I would like to do the following:

function get_all_rows(mysqli_result $result)
{
   $ptr = $result->row_tell();
   $rows = array();
   while ($row = $result->fetch_row()) $rows[] = $row;
   $result->row_seek($ptr);
   return $rows;
}