警告：mysqli_connect（）：MySQL服务器已经走了 [英] Warning: mysqli_connect(): MySQL server has gone away

问题描述

我写了一个简单的php代码连接到mysql服务器如下

I wrote a simple php code to connect to the mysql server as below

    <?php

$username = "root";
$password = "Kepwd";
$hostname = "localhost:81";

//connection to the database
$dbhandle = mysqli_connect($hostname, $username, $password)
  or die("Unable to connect to MySQL");
echo "Connected to MySQL<br>";

 ?>

但会产生以下错误。我在google和stactoverflow中发现了一些关于这个问题的主题。但这些都不帮助我。

but this generates following errors. I found some topics regarding this issue in google and stactoverflow. but those aren't help me. please can anyone help me ?

    ( ! ) Warning: mysqli_connect(): MySQL server has gone away in C:\wamp\www\SSDConsultingNew\inc\test.php on line 8
Call Stack
#   Time    Memory  Function    Location
1   0.0014  240936  {main}( )   ..\test.php:0
2   0.0014  241528  mysqli_connect ( )  ..\test.php:8

( ! ) Warning: mysqli_connect(): Error while reading greeting packet. PID=10612 in C:\wamp\www\SSDConsultingNew\inc\test.php on line 8
Call Stack
#   Time    Memory  Function    Location
1   0.0014  240936  {main}( )   ..\test.php:0
2   0.0014  241528  mysqli_connect ( )  ..\test.php:8

( ! ) Warning: mysqli_connect(): (HY000/2006): MySQL server has gone away in C:\wamp\www\SSDConsultingNew\inc\test.php on line 8
Call Stack
#   Time    Memory  Function    Location
1   0.0014  240936  {main}( )   ..\test.php:0
2   0.0014  241528  mysqli_connect ( )  ..\test.php:8
Unable to connect to MySQL

推荐答案

错误在这里：

$hostname = "localhost:81";

您不是连接到MySQL，而是连接到Apache服务器。如果没有更改MySQL端口，只需使用

You are not connecting to MySQL, but to Apache server. If you didn't change MySQL port just use

$hostname = "localhost";

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