session_start();
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);

//set logged variable
if(isset($_SESSION['userId'])) $_SESSION['logged'] = true;
else $_SESSION['logged'] = false;

$conf = include_once( __DIR__ . '/config.php');
include_once( __DIR__ . '/php_includes/connectToDb.php');

return [
    'database' =>
    [
        'host'     => 'dat1',
        'username' => 'dat2'
        'password' => 'dat3'
        'name'     => 'dat4'
    ],
    'anotherDataArr' =>
    [
        'data1' => 1,
        'data2' => 2,
    ]
];

var_dump($conf);
$conf = include_once( __DIR__ . '/../config.php');
var_dump($conf);
$GLOBALS['mysqli'] = new mysqli($conf['database']['host'], $conf['database']['username'], $conf['database']['password'], $conf['database']['name']);

$stmt = $GLOBALS['mysqli'] -> prepare("SET NAMES 'utf8'");
$stmt->execute();

[database]
    host = "dat1"
    username = "dat2"
    password = "dat3"
    name  = "dat4"

[anotherDataArr]
    data1 = 1
    data2 = 2

$config = parse_ini_file("path/to/config.ini");
print_r($config);