(PHP 4 >= 4.0.2, PHP 5)
ingres_num_rows -- Get the number of rows affected or returned by the last query| 警告 |
本函数是实验性的。本函数的行为，包括函数名称以及其它任何关于本函数的文档可能会在没有通知的情况下随 PHP 以后的发布而改变。使用本函数风险自担。 |
For delete, insert or update queries, ingres_num_rows() returns the number of rows affected by the query. For other queries, ingres_num_rows() returns the number of rows in the query's result.
注: This function is mainly meant to get the number of rows modified in the database. If this function is called before using ingres_fetch_array(), ingres_fetch_object() or ingres_fetch_row() the server will delete the result's data and the script won't be able to get them.
You should instead retrieve the result's data using one of these fetch functions in a loop until it returns FALSE, indicating that no more results are available.
See also ingres_query(), ingres_fetch_array(), ingres_fetch_object(), and ingres_fetch_row().