<?php
 $servername = "localhost";
 $username = "root";
 $password = "";
 $dbname = "contacts";

// create a variable
$first_name=$_POST['first_name'];
$last_name=$_POST['last_name'];
$department=$_POST['department'];
$email=$_POST['email'];

//Execute the query

mysqli_query($connect "INSERT INTO `conatcts`(first_name,last_name,department,email)
            VALUES('$first_name','$last_name','$department','$email')");
?>