This is the code in my PHP script on a very basic html page with a form. I have tried every possible variation of single quotes, double, single and double for the values. I didn't get any response at all. I have tested to make sure the connection is made, but nothing is inserted in the DB. I just don't know what I'm doing wrong.

```
// Check our connection
if (mysqli_connect_errno($con)) {
    print_r("Connect failed: %s\n", mysqli_connect_error());
    exit();
}

if(isset($_POST["submit"])){
    $name = $_POST['name'];
    $company = $_POST['company'];
    $email = $_POST['email'];
    $comment = $_POST['comment'];

     // Insert our data
    $query = mysqli_query("INSERT INTO 'contacts' ('id','name', 'company', 'email', 'comment')  VALUES ('','$name', '$company', '$email', '$comment')", $con);
    $result = ($query); 

    if( $result )
    {
        print_r('Success');
    }
    else
    {
        print_r('Query Failed');
    }
    mysqli_close($con);
}

```