Wamp, PHP MySQL – Connecting error

I’ve installed a WAMP server. Now I want to connect to a MySQL database using php. I have one problem you need to get the username.
This is the code I use. Its from 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";
?>

I get the following error:

Warning: mysqli::mysqli(): in C:wampwwwAtletiekerdbconnect.php on line 7
Failed to connect to MySQL: (1045) Accès refusé pour l’utilisateur: ‘root’@’@localhost’ (mot de passe: OUI)

Warning: main(): Couldn’t fetch mysqli in C:wampwwwAtletiekerdbconnect.php on line 11

How do I get the username of my database?


Source: wampserver

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