如何在里面放一个动作<li>一个href？

Question

I am trying to put an action on an a href inside an li and this is my code for the selector:

<td class="small-col"><input name="selector[]" type="checkbox" value="<?php echo $sender_message_id; ?>"/></td>

and for the dropdown:

<div class="btn-group">
  <button type="button" class="btn btn-default btn-sm btn-flat dropdown-toggle" data-toggle="dropdown">
    Action <span class="caret"></span>
  </button>

  <ul class="dropdown-menu" role="menu">
    <li><a href="read_message.php" type="submit" method="post">Mark as read</a></li>
    <li><a href="#">Mark as unread</a></li>
    <li class="divider"></li>
    <li><a href="#">Move to junk</a></li>
    <li class="divider"></li>
    <li><a href="#">Delete</a></li>
  </ul>

</div>

this code is for messages and im trying to put an action on the dropdown, what should i do?

and for the action, which this works on the form and button, href is different so i cannot make this work,

<?php
include('session.php');
 include('connect.php');
 if (isset($_POST['read'])){
$id=$_POST['selector'];
 $N = count($id);
for($i=0; $i < $N; $i++)
 {
 $result = mysql_query("update message_received set message_status = 'read' where message_id='$id[$i]'");
 }
header("location: mailbox.php");
}

?>

anyway the screenshot, this is an unread

Answer 1

You can do in several ways the simples is call different php files for different request like different command in a table command column

<ul class="dropdown-menu" role="menu">
   <li><a href="read_message.php" type="submit" method="post">Mark as read</a></li>
   <li><a href="unread_message.php">Mark as unread</a></li>
   <li class="divider"></li>
   <li><a href="move_junck.php">Move to junk</a></li>
   <li class="divider"></li>
   <li><a href="delete.php">Delete</a></li>
</ul>