<?php
$sql = "SELECT id, onderwerp FROM onderwerpen";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
// output data of each row
while($row = $result->fetch_assoc()) {
echo "<li>" . $row["id"]. " - " . $row["onderwerp"]. "</li>";
}
} else {
echo "0 results";
}
?>
En het de button met meer en minder is:
<details>
<summary role="button" aria-expanded="false">Meer</summary>
<ul>
<li> ... </li>
</ul>
</details>