PDO with options.

example.php

<?php

function getPDOInstance($host, $name, $user, $password)
{
    $dsn = str_replace(
        ['{HOST}', '{NAME}'],
        [$host, $name],
        'mysql:host={HOST};dbname={NAME};charset=utf8mb4'
    );

    $options = [
        PDO::ATTR_CASE => PDO::CASE_NATURAL,
        PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
        PDO::ATTR_ORACLE_NULLS => PDO::NULL_NATURAL,
        PDO::ATTR_STRINGIFY_FETCHES => false,
        PDO::ATTR_EMULATE_PREPARES => false,
    ];

    return new \PDO($dsn, $user, $password, $options);
}