Php/PDO Connection

<?php

    $DB_HOST  = 'localhost';
    $DB_LOGIN = 'root';
    $DB_PASS  = 'password_here';
    $DB_NAME  = 'Database_Name_Here';
    $charset  = 'utf8mb4';

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

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

    try{

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

        $connected = "You are successfully connected to the ".$DB_NAME." database";
        return $connected; //To Test echo $connected on home page to show connection

    }catch(PDOException $e){

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

    }
?>