如何在第9行更改用户'议程'@'localhost'的“访问被拒绝”（使用密码：是）

Question

<?php
class MySQLDB 
{
    var $connection; //The MySQL database connection
    var $num_active_users; //Number of active users viewing site
    var $num_active_guests; //Number of active guests viewing site
    var $num_members; //Number of signed-up users

    function MySQLDB() {
        $this->connection = mysql_connect(DB_SERVER, DB_USER, DB_PASS) or die(mysql_error());
        mysql_select_db(DB_NAME, $this->connection) or die(mysql_error());

        $this->num_members = -1;

        if (TRACK_VISITORS) {
            $this->calcNumActiveUsers();
            $this->calcNumActiveGuests();
        }
    }
};
?>

Answer 1

Use this code:

$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
} 

And make sure you type in the RIGHT username, password and database name... :)