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

 <?php
class 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