PHP MySQL -连接错误

Question

我已经安装了一个WAMP服务器。现在我要使用php连接到MySQL数据库。我有一个问题你需要得到用户名。这是我使用的代码。它来自php.net http://php.net/manual/en/mysqli.quickstart.connections.php

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

我得到以下错误:

警告:mysqli::mysqli(): in C:wampwwwAtletiekerdbconnect.php第7行连接MySQL失败:(1045)acc reus pour l'utilisateur: 'root'@'@localhost' (mot de pass: OUI)

警告:main():无法在C:wampwwwAtletiekerdbconnect.php中获取mysqli

如何获得数据库的用户名?

Answer 1

试试这个…

    $db_host = "127.0.0.1";
    $db_username = "root";
    $db_password = "";
    $db_name = "test";

Answer 2

显然$db_password应该是空的，如果你没有改变任何设置，默认密码应该是空的