Php/docs/mysqlnduhconnection.useresult
MysqlndUhConnection::useResult
(PECL mysqlnd-uh >= 1.0.0-alpha)
MysqlndUhConnection::useResult — Initiate a result set retrieval
说明
public MysqlndUhConnection::useResult
( mysqlnd_connection $connection
) : resource
Initiate a result set retrieval.
参数
connection
- Mysqlnd connection handle. Do not modify!
返回值
Resource of type Mysqlnd Resultset (internal only - you must not modify it!)
.
The documentation may also refer to such resources using the alias name
mysqlnd_resultset
.
范例
Example #1 MysqlndUhConnection::useResult() example
<?phpclass proxy extends MysqlndUhConnection { public function useResult($res) { printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true)); $ret = parent::useResult($res); printf("%s returns %s\n", __METHOD__, var_export($ret, true)); var_dump($ret); return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");$mysqli->real_query("SELECT 'Good morning!' AS _msg FROM DUAL");$res = $mysqli->use_result();var_dump($res->fetch_assoc());?>
以上例程会输出:
proxy::useResult(array ( 0 => NULL, )) proxy::useResult returns NULL resource(425) of type (Mysqlnd Resultset (internal only - you must not modify it!)) array(1) { ["_msg"]=> string(13) "Good morning!" }
参见
- mysqlnd_uh_set_connection_proxy() - Installs a proxy for mysqlnd connections
- mysqli_use_result() - Initiate a result set retrieval
- mysqli_real_query() - 执行一个mysql查询