Untitled

<html>
  <head>
    <title>db1 test</title>
  </head>
  <body>
    <form id="myForm" action="userInfo.php" method="post">
      Username: <input type="text" name="username" /><br />
      Name: <input type="text" name="name" /><br />
      Favourite Number: <input type="text" name="favouritenumber" /><br />
      <button id="sub">Save</button>
    </form>

    <span id="result"></span>

    <script src="/script/jquery-1.8.1.min.js" type="text/javascript"></script>
    <script src="/script/my_script.js" type="text/javascript"></script>
  </body>
</html>

<?php
        $host = "localhost";
        $port = "8889";
        $servername = "$host:$port";
        $username = "forest";
        $password = "";
        $db = "db1";
        // Create connection
        $conn = new mysqli_connect($servername, $username, $password, $db);
        // Check connection
        if ($conn - > connect_error) {
            die("Connection failed: ".$conn - > connect_error);
        }
    ?>

<?php
include_once "/includes/db1.php";
$username = $_POST['username'];
$name = $_POST['name'];
$favouritenumber = $_POST['favouritenumber'];
if(mysqli_query("INSERT INTO user(username,name,favouritenumber) VALUES ('$username', '$name', '$favouritenumber')"))
    echo "Successfully Inserted";
    //echo "<a href='login_success.php'>Back to main page</a>";

else {
    echo "ERROR not entered";
}
// close connection
mysqli_close();

[1]: https://stackoverflow.com/questions/2973202/mysql-fetch-array-mysql-fetch-assoc-mysql-fetch-row-mysql-num-rows-etc