<?php
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);

include 'koneksi.php';

$q = mysqli_query($koneksi, "SELECT * FROM program_semester LIMIT 1");
if(!$q) die("Query gagal: ".mysqli_error($koneksi));

$r = mysqli_fetch_assoc($q);
var_dump($r);