add_user

<?php
$koneksi = new mysqli("localhost", "root", "", "db_oop");
//Jika Koneksi Gagal
if(mysqli_connect_errno())
{
    trigger_error("Tidak Dapat Terkoneksi Dengan Database");
}
$koneksi->set_charset('UTF-8');
$username = $_POST['username'];
$password = $_POST['password'];
$nama_lengkap = $_POST['nama_lengkap'];

$insert = $koneksi->prepare("INSERT INTO 'tb_login' ('username', 'password', 'nama_lengkap') VALUES (?, ?, ?");
$insert->bind_param("sss", $username, $password, $nama_lengkap);
if($insert->execute())
{
    echo "Tersimpan";
}
else
{
    echo "GAGAL INSERT";
}
?>