How can a PHP forum thread be marked as resolved or completed?

To mark a PHP forum thread as resolved or completed, you can add a status field to your database table for forum threads. When a thread is marked as resolved, update the status field to reflect this. You can then display a "Resolved" tag or icon next to the thread title on the forum page.

// Assuming you have a database connection established

// Update the status of a thread to mark it as resolved
$thread_id = 123; // ID of the thread to mark as resolved
$status = 'resolved'; // Status to update the thread to

$sql = "UPDATE forum_threads SET status = :status WHERE id = :thread_id";
$stmt = $pdo->prepare($sql);
$stmt->bindParam(':status', $status);
$stmt->bindParam(':thread_id', $thread_id);
$stmt->execute();