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

<?php
class 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!"
}

参见