Untitled

<?php

function sendfeedback(){
    $email=$_POST['email'];
    $subject=$_POST['subject'];
    $feedback=$_POST['feedback'];

    $servername="localhost";
    $username="root";
    $password="root";
    $dbname="trial_db";

    $conn= new mysqli($_servername,$username,$password,$dbname);

    if(!conn){

        die("Connection Failed: ".mysqli_connect_error());

        }
        echo"Connected Successfully";


    }


?>

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Untitled Document</title>
</head>

<body>
<form action="<?php $_SERVER["PHP_SELF"]?>" method="post">

<table align="center">
<th colspan="2" align="center">Feedback</th>
<tr> <td>Email id :</td> <td><input type="text" name="email"> </td></tr>
<tr> <td>subject :</td>  <td><input type="text" name="subject"></td></tr>
<tr> <td>feedback : </td> <td><textarea name="feedback"></textarea></td></tr>
<tr><td><button name="send" onClick="sendfeedback();"> Send</button><button name="cancel">Cancel</button>
</table>


</form>


</body>
</html>