show.php

<?php
/**
 * Created by PhpStorm.
 * User: Cod.wiz
 * Date: 1/16/2019
 * Time: 9:56 PM
 */

 /*
  * ye mujha add krna prh rh afile chalany k lia
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "mydb";

$conn = new mysqli($servername, $username, $password, $dbname);
*/
 // form is the column (double checked it)
$sql = "SELECT * FROM form;";
// was getting a $conn not defined error which resides into another file , had included it with include_once "connect.php". But error so moved the
// code here
// trouble krna wala ye variable ha $conn
$result = mysqli_query($conn,$sql);
$resultCheck = mysqli_num_rows($result);

// below is the line 27
    if ($resultCheck > 0) {
        while ($row = mysqli_fetch_assoc($result)) {
            // value1 is the row name from which I want to show data from
            echo $row['value1'] .'</br>';
        }
    }

     /*

Notice: Undefined index: id
in C:\xampp\htdocs\form\show.php on line 27

Notice: Undefined index: id
in C:\xampp\htdocs\form\show.php on line 27

Notice: Undefined index: id
in C:\xampp\htdocs\form\show.php on line 27

Notice: Undefined index: id
in C:\xampp\htdocs\form\show.php on line 27
     */