that should be it ... ? Backend done?

threadr/board/board.php

@@ -3,11 +3,13 @@ $pdo = new PDO('mysql:host=%DB_SERVER%;dbname=%DB_NAME%', '%DB_USERNAME%', '%DB_
 $statement = $pdo->prepare("SELECT * FROM posts WHERE board_id=:bid ORDER BY post_time asc");
 $statement->execute(array("bid"=>$id));
 foreach($statement->fetchAll() as $ROW) {
+
+  // get post creator
   $statement = $pdo->prepare("SELECT * FROM users WHERE id=:uid");
   $statement->execute(array("uid"=>$ROW[user_id]));
-
   $post_creator = $statement->fetch();
 
+  // get post content and make sure it doesn't mess with the website
   $post_title = htmlspecialchars($ROW['title']);
   $post_creator_name = htmlspecialchars($post_creator['name']);
   $post_time = htmlspecialchars($ROW['post_time']);
@@ -17,6 +19,9 @@ foreach($statement->fetchAll() as $ROW) {
   $newlines = array("\r\n", "\n\r", "\r", "\n"); // two-character newlines first to prevent placing two line breaks instead of one
   $post_content = str_replace($newlines, "<br />", $post_content);
 
+  // post id of the original post this is a reply to, negative numbers mean no reply
+  $reply_to = $ROW['reply_to'];
+
   echo "<section>
 <h1>$post_title</h1>
 <article>