25.2.3.47. mysql_num_rows()
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.
Return Values
The number of rows in the result set.
Errors
None.
