I have a form with a select box where the user can select pre-existing fields from a database:

  
Title and Description:
  
  
    query("SELECT uid, title, description FROM tblFacilityHrs") or die($mysqli->error);
      while ($row = $result->fetch_array(MYSQLI_ASSOC)){
        echo "" . $row['title'] ." - " . $row['description'] . "";
        $uid = $row['uid'];
        $title = $row['title'];
        $desc = $row['description'];
      }
    ?>
    
...

How can I send all three of those values (separately) to my postback for SQL?

if (isset($_POST['submitted'])) { 
  //Get params for prepared statements
  $startDatec= date("Y-m-d H:i:s", strtotime($_POST['startEventDate']));
  $endDatec= date("Y-m-d H:i:s", strtotime($_POST['endEventDate']));
  $startTimec=$_POST['startTime'];
  $endTimec=$_POST['endTime'];
  $recurc=$_POST['recurrence'];
  $finalc= date("Y-m-d H:i:s", strtotime($_POST['finalDate']));
  ...