PHP Manual
MysqlndUhConnection
Initializes a statement and returns a resource for use with mysqli_statement::prepare

MysqlndUhConnection::stmtInit

(PECL mysqlnd-uh >= 1.0.0-alpha)

MysqlndUhConnection::stmtInit — Initializes a statement and returns a resource for use with mysqli_statement::prepare

说明

public MysqlndUhConnection::stmtInit ( mysqlnd_connection $connection ) : resource

Initializes a statement and returns a resource for use with mysqli_statement::prepare.

参数

connection: Mysqlnd connection handle. Do not modify!

返回值

Resource of type Mysqlnd Prepared Statement (internal only - you must not modify it!). The documentation may also refer to such resources using the alias name mysqlnd_prepared_statement.

范例

Example #1 MysqlndUhConnection::stmtInit() example

 <?php
class proxy extends MysqlndUhConnection {
 public function stmtInit($res) {
  printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));
  var_dump($res);
  $ret = parent::stmtInit($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");
$stmt = $mysqli->prepare("SELECT 1 AS _one FROM DUAL");
$stmt->execute();
$one = NULL;
$stmt->bind_result($one);
$stmt->fetch();
var_dump($one);
?>

以上例程会输出：

proxy::stmtInit(array (
  0 => NULL,
))
resource(19) of type (Mysqlnd Connection)
proxy::stmtInit returns NULL
resource(246) of type (Mysqlnd Prepared Statement (internal only - you must not modify it!))
int(1)

参见

mysqlnd_uh_set_connection_proxy() - Installs a proxy for mysqlnd connections
mysqli_stmt_init() - 初始化一条语句并返回一个用于mysqli_stmt_prepare(调用)的对象