JavaScript Arrays and MySQL

I am trying to connect to a database with PHP and then put all the values returned from the MySQL query into a JavaScript string array.

Here is the code that I have so far.

JavaScript Code:

var noDressing = document.getElementById("temp1").innerHTML;
var noDressingNew = noDressing.split(',');
alert(NoDressingNew);

I am alerting the list for debugging purposes.

Here is the PHP Code (I know that it connects to the database successfully):

<div id="temp1" style="display: none;">
    <?php
        include "/home/pi/config.php";
        $toPrint = "";
        $connect = mysqli_connect("localhost", $name, $pass, "items");
        if(mysqli_connect_errno()){
            echo "<p>Failed to connect to products database!</p>";
        }
        $result = mysqli_query($connect, "SELECT * FROM products WHERE options=''");
        while($row = mysqli_fetch_array($result)){
            $id = $row['id'];
            $toPrint .= $id . ",";
        }
        echo rtrim($toPrint, ",");
    ?>
</div>

This is what my table looks like in the database:

ID | NAME | DESCRIPTION | PRICE | TYPE | OPTIONS

I would like to get all of the records that have an OPTIONS value of "" (an empty string) and then put their IDs into a list.

However, when I run this code, no Alert Box is Displayed at all.

Thanks,