my latest

register.php

@@ -23,7 +23,18 @@ if ($_SERVER["REQUEST_METHOD"] == "POST") {
     header('Content-Type: application/json');
 
     // --- DATA CAPTURE ---
-    // The $webinar object is already available from the initial page load.
+    $webinar_id = filter_input(INPUT_POST, 'webinar_id', FILTER_VALIDATE_INT);
+    $webinar = null;
+    if ($webinar_id) {
+        try {
+            $stmt = $pdo->prepare("SELECT title, description, starts_at, ends_at FROM webinars WHERE id = ?");
+            $stmt->execute([$webinar_id]);
+            $webinar = $stmt->fetch(PDO::FETCH_ASSOC);
+        } catch (PDOException $e) {
+            // Log error, but don't show to user
+        }
+    }
+    
     $email = filter_input(INPUT_POST, 'email', FILTER_VALIDATE_EMAIL);
     $first_name = filter_input(INPUT_POST, 'first_name', FILTER_SANITIZE_STRING);
     $last_name = filter_input(INPUT_POST, 'last_name', FILTER_SANITIZE_STRING);