php

<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "bit2018";
//create connection
$conn = mysqli_connect($servername,$username,$password,$dbname);
//check connection
if(!$conn)
    {
        die("connection failed: " . mysqli_connect_error());
    }
if(isset($_POST['submitbtn']))
{
	$std_fname = $_POST['std_fname'];
	$std_lname = $_POST['std_lname'];
	$std_roll = $_POST['std_roll'];
	$std_contact = $_POST['std_contact'];
	$std_address = $_POST['std_sddress'];

	$sqlQuery = "INSERT INTO student_3rd (std_fname,std_lname,std_roll,std_contact,std_address)
	VALUES ('$std_fname','$std_fname','$std_roll','std_contact','$std_address')";
	if(mysql_query($conn,$sqlQuery))
	{
		$msg = "Information Inserted Succesfully";
	}
	else
	{
		$msg = "Problem in Inserting Data";
	}
}
?>
<h1 style="color:green"