threadr.lostcave.ddnss.de/threadr/board/submit.php

<?php
%REQUIRE_LOGIN%
  
$pdo = new PDO('mysql:host=localhost;dbname=web', 'webstuff', 'Schei// auf Pa$$w0rter!')

$error = false;
$error_message = "";
if (!$error) {
  $statement = $pdo->prepare("INSERT INTO posts (board_id, user_id, content, title) VALUES (:bid, :uid, :content, :title)");
  $result = $statement->execute(array('bid'=>$id, 'uid'=>$user_id, 'content'=>$content, 'title'=>$title));
}
if (!$result) {
    $error_message = "<p>Error: SQL error.</p><pre>" . $statement->queryString . "</pre><pre>" . $statement->errorInfo()[2] . "</pre>";
}

echo "<div class='margin'><a href='%CONTENT_DIR%/board/?id=$id&action=edit'><button> Edit your post </button></a><a href='%CONTENT_DIR%/board/?id=$id'><button> Done </button></a></div>";
?>