I agree what David says.
but the point is if someone else moved the pointer using mysql_data_seek($i)
and he didn't tell me how much $i is, or I use mysql_data_seek so many times
that I can't remember the sum of the offsets.
I don't think write a tracker is a feasible way, because there are so many
actions can move pointer, mysql_data_seek(), mysql_fetch_row(),
mysql_fetch_array() etc. Tracking all these actions is not possible, and it
is error-prone and needs much much effort.
David Robley [EMAIL PROTECTED]
??:[EMAIL PROTECTED]
In article [EMAIL PROTECTED], [EMAIL PROTECTED]
says...
in php,mysql_seek can move the pointer, but you have no way to know
where
the pointer locates currently.
i think some function should be added in the future version, like
mysql_getPointerPosition($rs) which returns a int as the position in
resultset. so it's would be easy to implements some pointer moving
functions
like mysql_movenext(), mysql_moveprev,mysql_movefirst,mysql_movelast
etc.
It's trivial to do your own tracking of where the pointer is, using
mysql_num_rows to determine the number of rows in your result set and a
counter to track your movement, using mysql_data_seek, in the result set.
The manual shows n example of how to return a set in reverse order, for
example.
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