在ajax中发布ID [重复]

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I am working on PHP to display a modal when I click on a hyperlink. I have got a problem with post the ID in ajax, because it will not fetch the id from the hyperlink to post it in ajax so I don't know why.

I have tried this but it didnt work:

var id = $(this).attr('autoid');

$.ajax({
    type: 'POST',
    url: "sendtest.php",
    data: {autoid : id},

    success: function(resultData)
    {
        alert(resultData)
    }

here is the code:

<span style="font-size: 15px; color: #ccd5d9; float: left; margin-top: -1px"><a href="#contactModal" role="button" data-toggle="modal">Send a test</a> | <a name="autoid" id="autoid" href="/delete_id.php?id=<?php echo $autoid ?>"> Delete </a> | Copy to Draft | Settings</span>

<div id="contactModal" class="modal fade" style="margin-top: 12%;" tabindex="-1" role="dialog">
    <div class="modal-dialog">
        <!-- Modal content-->
        <div class="modal-content" style="height: 250px;">
            <div class="modal-header" style="margin-bottom: 10px;">
                <button type="button" class="close" data-dismiss="modal">&times;</button>
                <h3 class="modal-title">Send A Test Email</h3>
            </div>
            <div class="modal-body" style="height: 65%;">
               <form action="" method="post">
                    <label class="label-control" value="">Send test message to email address:</label>
                    <?php
                        $html = '<select name="emails" id="emails" value="" style="width: 400px; margin-top: 10px; margin-bottom: 18px; margin-left: 60px;">';
                        $values = array('unknown', $_SESSION["email"]);

                        foreach($values as $v)
                        {
                            $selected = '';
                            if($v == 'unknown')
                            {
                                $title = '';
                            }else{
                                $title = $v;
                            }

                            if($v == $_SESSION["from"])
                            {
                                $selected = "selected";
                            }
                            $html .= "<option $selected value='$v'>$title</option>";
                        }
                        $html .= "
                        </select><br>";
                        echo $html;
                    ?>

                    <button name="send_email" id="send_email" type="submit" class="btn btn-primary" style="margin-left: 36%;">Send Test</button>
                </form>
            </div>
        </div>
    </div>
</div>


<script type="text/javascript">

$('#send_email').click(function(){
    document.getElementById("send_email").innerHTML = "<span><i class=\'fa fa-spinner fa-spin\'></i> Sending...</span>";
    document.getElementById('send_email').disabled = true;
    var id = $(this).attr('autoid');
    alert( $(this).attr('autoid'));


    $.ajax({
        type: 'POST',
        url: "sendtest.php",
        data: {autoid : id},

        success: function(resultData)
        {
            alert(resultData)
            $('#contactModal').modal('hide');
            document.getElementById("send_email").innerHTML = "Send Test";
            document.getElementById('send_email').disabled = false;
        }
        });
    });
</script>

in sendtest.php:

<?php
// Initialize the session
session_start();

// Check if the user is logged in, if not then redirect him to login page
if(!isset($_SESSION["loggedin"]) || $_SESSION["loggedin"] !== true){
    header("location: login.php");
    exit;

}
else if(isset($_POST))
{
    $param_username = $_SESSION['username'];
    $param_campaign = $_SESSION['campaign'];
    $id = $_POST['autocampaign'];
    echo "hello your id is...";
    echo $id;
} 
?>

I'm sorry if it have been posted very similar in the past, but this is a difficult situation I have been going through so I would like to get some help with this.

So what I am trying to do is when I click on a button to display on a modal and select a value, I click on a button again to get the ID autoid to post it via ajax and display the alert with the ID.

Can you please show me an example what is the correct way I could use to fetch the ID from the HTML tag called autoid so I can post it in ajax to display the ID in the alert?

Thank you.

EDIT: It didn't work when I try this:

<form action="" method="post">
    <span style="font-size: 15px; color: #ccd5d9; float: left; margin-top: -1px"><a name="autoid" id="autoid" href="#contactModal" role="button" data-toggle="modal">Send a test</a> | <a name="autoid" id="autoid" href="/delete_id.php?id=<?php echo $autoid ?>"> Delete </a> | Copy to Draft | Settings</span>
</form>

in sendtest.php:

<?php
// Initialize the session
session_start();

// Check if the user is logged in, if not then redirect him to login page
if(!isset($_SESSION["loggedin"]) || $_SESSION["loggedin"] !== true){
    header("location: login.php");
    exit;

}
else if(isset($_POST))
{
    $param_username = $_SESSION['username'];
    $param_campaign = $_SESSION['campaign'];
    $id = $_POST['autoid'];
    echo "hello your id is...";
    echo $id;
}
?>

At all I get is hello your id is... in the alert.

UPDATE: Here is the full code:

<?php
// Initialize the session
session_start();

// Check if the user is logged in, if not then redirect him to login page
if(!isset($_SESSION["loggedin"]) || $_SESSION["loggedin"] !== true){
    header("location: login.php");
    exit;
}
else
{
    $link = mysqli_connect('localhost', 'mydbusername', 'mydbpassword', 'mydbname');
    $param_username = $_SESSION['username'];
    $autocampaign = $_SESSION["campaign"];
    $auto_sql = "SELECT id, subject, day_cycle, enabled, delaysend FROM autore WHERE campaign ='$autocampaign' AND username ='$param_username'";

        $results = mysqli_query($link, $auto_sql);

         if (mysqli_num_rows($results) > 0) 
         { 
            while ($row = mysqli_fetch_array($results))
            {
                $autoid = $row["id"];
                $autosubject = $row["subject"];
                $autodaycycle = $row["day_cycle"];
                $autoenabled = $row["enabled"];
                $autodelay = $row["delaysend"];
            }
         }
?>

<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>





<style type="text/css">


.calendar-content {
    float: left;
    width: 100%;
    min-height: 112px;
    border: 1px solid #ccc;
    position: relative;
    margin-top: -1px;
}


</style>

<div class="calendar-content">
  <div style="margin-left: 40px;margin-top: 20px; height: 40px;">
    <span id="autosubject" style="font-size: 25px;color: #0c7ac0;float: left;">Subject: <?php echo $autosubject ?> </span><br>
    <div style="margin-left: 35px; margin-top: 15px; height: 40px;">
      <form action="" method="post">
        <span style="font-size: 15px; color: #ccd5d9; float: left; margin-top: -1px"><a name="autoid" id="autoid" href="#contactModal" role="button" data-toggle="modal">Send a test</a> | <a name="deleteid" id="deleteid" href="/delete_id.php?id=<?php echo $autoid; ?>"> Delete </a> | Copy to Draft | Settings</span>
      </form>
    </div>
  </div><br>

  <!-- email Modal -->
  <div id="contactModal" class="modal fade" style="margin-top: 12%;" tabindex="-1" role="dialog">
    <div class="modal-dialog">
      <!-- Modal content-->
      <div class="modal-content" style="height: 250px;">
        <div class="modal-header" style="margin-bottom: 10px;">
          <button type="button" class="close" data-dismiss="modal">&times;</button>
          <h3 class="modal-title">Send A Test Email</h3>
        </div>
        <div class="modal-body" style="height: 65%;">
          <form action="" method="post">
            <label class="label-control" value="">Send test message to email address:</label>
            <select name="emails" id="emails" value="" style="width: 400px; margin-top: 10px; margin-bottom: 18px; margin-left: 60px;">
              <option selected="selected" value='title'>Title</option>";
            </select><br>
            <button name="send_email" id="send_email" type="submit" class="btn btn-primary" style="margin-left: 36%;" data-auto-id="<?php echo $autoid; ?>">Send Test</button>
          </form>
        </div>
      </div>
    </div>
  </div>
<?php
}
?>

<script type="text/javascript">
  $(function() {
  $('#send_email').click(function(e) {
    $(this)
      .html("<span><i class='fa fa-spinner fa-spin'></i> Sending...</span>")
      .prop("disabled", true);
    var id = $(this).data('deleteid');

    $.ajax({
      type: 'POST',
      url: "sendtest.php",
      data: {
        deleteid: id
      },
      success: function(resultData) {
        alert(resultData)
        $('#contactModal').modal('hide');
        $("#send_email")
          .html("Send Test")
          .prop("disabled", false);
      }
    });
  });
});
</script>
</body>
</html>

</div>