PDO Connection with options

<?php

    //This script, in some cases, may cause issues with the options. If things are not working as expected then comment out the 2nd option,
    // \PDO::ATTR_DEFAULT_FETCH_MODE and try testing your project again.

    $DB_HOST  = 'localhost';
    $DB_LOGIN = 'root';
    $DB_PASS  = 'password';
    $DB_NAME  = 'Your_Database_Name';
    $charset  = 'utf8mb4';

    $options = [
        \PDO::ATTR_ERRMODE            => \PDO::ERRMODE_EXCEPTION,
        \PDO::ATTR_DEFAULT_FETCH_MODE => \PDO::FETCH_ASSOC,
        \PDO::ATTR_EMULATE_PREPARES => false,
    ];

    $dsn = "";

    try{

        $dsn = "mysql:host=$DB_HOST;dbname=$DB_NAME;charset=$charset";

        $pdo = new PDO($dsn, $DB_LOGIN,$DB_PASS,$options);

        $connected = "<hr><p>Connected to the ".$DB_NAME." database</p>";
        echo $connected; //Echo this var, and the line above, out of your code when in production. This is only to test connection

    }catch(PDOException $e){

        die ('Connection Failed: '.$e->getMessage());

    }