Mysql PHP

<?php

//insert into database
// create save.php file and write this code there, submit from a from which has fields, [message, name, password]
$name = $_POST['name'];
$message = $_POST['message'];
$password = $_POST['password'];
$query = "insert into users (name, message, password ) VALUES( '$name', '" .$message ."', '$password')";

$query = "select * from users";
$mysql = mysqli_connect('localhost','root','','leapfrog');
$result = mysqli_query( $mysql, $query);


//select from database
//make a new file list.php and write this code there to show this data in a table
$query = "select * from users";
$mysql = mysqli_connect('localhost','root','','leapfrog');
$result = mysqli_query( $mysql, $query);

while( $row = mysqli_fetch_assoc( $result ) ) {

    echo "My name is " . $row['name'] . "<br/>";
}