<?php
    session_start();

    $conn;
    $servername = "localhost";
    $username = "user";
    $password = "pass";
    $charset = "UTF8MB4"; // if your db does not use CHARSET=UTF8MB4, you should probably be fixing that
    $options = [
        PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION, // highly recommended
        PDO::ATTR_EMULATE_PREPARES => false // ALWAYS! ALWAYS! ALWAYS!
    ];


    $dns = "mysql:host=$servername;dbname=$username;charset=$charset";
    $conn = new PDO($dns, $username, $password,$options);