how i can fix the undefined variable : <p>I get this error
Notice: Undefined index: pharmacy.Name in C:\xampp\htdocs\RAU\courses.php on line 17   Notice: Undefined index: delivery.Phone in C:\xampp\htdocs\RAU\courses.php on line 19   Notice: Undefined index: delivery.Address in C:\xampp\htdocs\RAU\courses.php on line 21</p>

<pre><code> &lt;link rel="stylesheet" href="style1.css"&gt;
    &lt;?php  
    $servername = "localhost";
        $userrname = "root";
        $password = "";
        $dbname = "bless";
        $conn = new mysqli($servername, $userrname, $password ,$dbname);
        if ($conn-&gt;connect_error) {
            die("Connection failed: " . $conn-&gt;connect_error);
        }
    $sqlq="SELECT pharmacy.name,delivery.phone,delivery.address FROM delivery INNER JOIN pharmacy ON delivery.Pharmacy_id = pharmacy._id";
    $rslt=$conn-&gt;query($sqlq) ;
    $roww = $rslt-&gt;fetch_assoc();

    echo "&lt;br&gt;";
    echo "&lt;br&gt;";
    echo "&lt;td&gt;" . $roww['pharmacy.name'] ;
    echo "&lt;br&gt;";
        echo"&lt;td&gt;". $roww['delivery.phone'];
    echo "&lt;br&gt;";
        echo"&lt;td&gt;". $roww['delivery.address'];
    echo "&lt;br&gt;";
    ?&gt;
</code></pre>
