my_ulonglong mysql_num_rows(MYSQL_RES
*result)
Description
Returns the number of rows in the result set.
The use of mysql_num_rows()
depends on whether you use
mysql_store_result()
or
mysql_use_result()
to return the
result set. If you use
mysql_store_result()
,
mysql_num_rows()
may be called
immediately. If you use
mysql_use_result()
,
mysql_num_rows()
does not return
the correct value until all the rows in the result set have been
retrieved.
mysql_num_rows()
is intended for
use with statements that return a result set, such as
SELECT
. For statements such as
INSERT
,
UPDATE
, or
DELETE
, the number of affected
rows can be obtained with
mysql_affected_rows()
.
Return Values
The number of rows in the result set.
Errors
None.
User Comments
Add your own comment.