PHP-MySQL-SSH:如何在使用SSH隧道连接时从PHP连接到mysql数据库(托管在CentOS上)

I'm having an issue and I don't know if it's related to the SSH tunnel but here's the deal.

I have a simple function to connect to the database from php and it works fine locally but it doesn't work to connect to a remote server.

connect.php

$dbhost = '172.1.2.3';
$dbuser = 'root';
$dbpass = 'testpass';
$db = 'testdb';

function dbconnect()
{
$conn = mysqli_connect($dbhost, $dbuser, $dbpass, $testdb);
$conn->set_charset("utf8");

error_reporting( E_ALL & ~E_DEPRECATED & ~E_NOTICE );
if(!$conn)
    {
        die('We are unable to connect you to the site! --> '.mysqli_error());
    }
else
    {   
        return $conn;
    }
}

Then, I include this file say on index.php and do the following.

<?php
include 'connect.php';
$conn = dbconnect();
?>

//html content below

the problem I'm having is that when I do the $conn = dbconnect(); the index.php page doesn't load, I just get a blank page. if I comment out $conn = dbconnect(); then the HTML content loads just fine.

I'm not getting error outputs on the console either so I'm a bit clueless as to what the problem might be and I don't know if it's related to the SSH tunneling which I don't know how to include it on the php connection function.

I do however, have to use the SSH credentials to connect to the database from any mysql manager so I want to believe I am missing something in the function.

if it helps, the server is running PHP 5.6 and mysql 5.7.22

Any help is appreciated.

Thanks,

dongnai6973
dongnai6973 我已经查看了堆栈上的一些帖子,但我找不到任何有用的东西,这就是我提出这个问题的原因。我找到的所有问题和答案都没有包括使用函数,因此我不知道它是否与函数的结构或其他方面有关。我刚刚注意到了这个链接的问题,我已经尝试过,但它对我不起作用。
大约 2 年之前 回复
dongni8124
dongni8124 搜索副本可能花费的时间比你编写问题所花费的时间少
大约 2 年之前 回复
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