<?php
$servername = "localhost";
$username = "root";
$password = "password";
$dbname = "daboxdb";
$user = ($_POST['user']);
$pass = ($_POST['pass']);
$mail = ($_POST['email']);
try {
    $conn = new PDO("mysql:host=$servername;dbname=$dbname", $username, $password);
    // set the PDO error mode to exception
    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    $sql = "INSERT INTO users (username, password, email)
    VALUES ('$user', '$pass', '$mail')";
    // use exec() because no results are returned
    $conn->exec($sql);
    echo "New record created successfully";
    }
catch(PDOException $e)
    {
    echo $sql . "<br>" . $e->getMessage();
    }

$conn = null;
?>