ADN CIW level 3

insert-student.php

<?php 
include('header.php');
include('connection.php');

if(isset($_POST['submit'])){
    $name=$_POST['name'];
    $roll=$_POST['roll'];
    $phone=$_POST['phone'];
    
$sql="INSERT INTO info (sname, roll, phone) VALUES('$name', '$roll', '$phone')";
    
    if(mysqli_query($conn, $sql)){
        echo "Success!";
    }
    else
        echo "Error!".mysqli_error($sql);
    
}