略微加速

PHP官方手册 - 互联网笔记

PHP - Manual: MysqlndUhConnection::queryReadResultsetHeader

2024-03-28

MysqlndUhConnection::queryReadResultsetHeader

(PECL mysqlnd-uh >= 1.0.0-alpha)

MysqlndUhConnection::queryReadResultsetHeaderRead 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($rettrue));
  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

add a note add a note

User Contributed Notes

There are no user contributed notes for this page.

官方地址:https://www.php.net/manual/en/mysqlnduhconnection.queryreadresultsetheader.php

冷却塔厂家 广告
-- 广告
北京半月雨文化科技有限公司.版权所有 京ICP备12026184号-3