mysql - php: SQLSTATE[HY000] [2002] No connection could be made because the target machine actively refused it

Question

I have create register and login form using php. And i had took the source from google.

So i have added all the corresponding code, when run index.php.

It shows,

SQLSTATE[HY000] [2002] No connection could be made because the target machine actively refused it.

I tried for fixing this problem using stackoverflow and google, still can't to rectify.

I Am using xampp. In xampp control panel, apache and mysql modules are running. and apache port is 80,443 and mysql port is 3306.

May i know, any other my mistake?..

Can someone help me? Any help would be appreciated.

Thanks in advance.

This is my config.php:

<?php
ob_start();
session_start();

//set timezone
date_default_timezone_set('Europe/London');

//database credentials
define('DBHOST','localhost');
define('DBUSER','root');
define('DBPASS','');
define('DBNAME','register');

//application address
define('DIR','http://domain.com/');
define('SITEEMAIL','noreply@domain.com');

try {

    //create PDO connection 
    $db = new PDO("mysql:host=".DBHOST.";port=8889;dbname=".DBNAME, DBUSER, DBPASS);
    $db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

} catch(PDOException $e) {
    //show error
    echo '<p class="bg-danger">'.$e->getMessage().'</p>';
    exit;
}

//include the user class, pass in the database connection
include('classes/user.php');
$user = new User($db); 
?>

Answer 1

didn't you say your mysql port is 3306:

$db = new PDO("mysql:host=".DBHOST.";port=8889
//------------------------------------------^

this might help:

$db = new PDO("mysql:host=".DBHOST.";port=3306