使用本地托管的代码连接到MySQL数据库

Question

When I try to run working php code on my localhost instead of the web server, I am getting a connection error.

Warning: mysqli::mysqli() [mysqli.mysqli]: [2002] Connection refused

Any idea how to get the MySQL username, db, and password to work from my local machine? I am using OS X Mountain Lion and Apache.

Do I have to login to the database server and add my IP?

Thanks!

Answer 1

Unless you've changed the default password root is allowed to connect to localhost, so that would be something like this :

<?php
$mysqli = new mysqli("localhost", "root", "", "");
if ($mysqli->connect_errno) {
    echo "Failed to connect to MySQL: (" . $mysqli->connect_errno . ") " . $mysqli->connect_error;
}
echo $mysqli->host_info . "
";

$mysqli = new mysqli("127.0.0.1", "user", "password", "database", 3306);
if ($mysqli->connect_errno) {
    echo "Failed to connect to MySQL: (" . $mysqli->connect_errno . ") " . $mysqli->connect_error;
}

echo $mysqli->host_info . "
";
?>

You can replace localhost by an ip, depends on how your database is configured to allow connections, using localhost or an explicit ip.