Php/docs/mysqlnduhconnection.queryreadresultsetheader
MysqlndUhConnection::queryReadResultsetHeader
(PECL mysqlnd-uh >= 1.0.0-alpha)
MysqlndUhConnection::queryReadResultsetHeader — Read a result set header
说明
public MysqlndUhConnection::queryReadResultsetHeader
( mysqlnd_connection $connection
, mysqlnd_statement $mysqlnd_stmt
) : bool
Read a result set header.
参数
connection- Mysqlnd connection handle. Do not modify!
mysqlnd_stmt- Mysqlnd statement handle. Do not modify! Set to
null, if function is not used in the context of a prepared statement.
返回值
Returns true on success.
Otherwise, returns false
范例
Example #1 MysqlndUhConnection::queryReadResultsetHeader() example
<?phpclass proxy extends MysqlndUhConnection { public function queryReadResultsetHeader($res, $stmt) { printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true)); $ret = parent::queryReadResultsetHeader($res, $stmt); printf("%s returns %s\n", __METHOD__, var_export($ret, true)); return $ret; }}mysqlnd_uh_set_connection_proxy(new proxy());$mysqli = new mysqli("localhost", "root", "", "test");$res = $mysqli->query("SELECT 'Welcome mysqlnd_uh!' FROM DUAL");var_dump($res->fetch_assoc());?>
以上例程会输出：
proxy::queryReadResultsetHeader(array (
0 => NULL,
1 => NULL,
))
proxy::queryReadResultsetHeader returns true
array(1) {
["Welcome mysqlnd_uh!"]=>
string(19) "Welcome mysqlnd_uh!"
}
