login.proses.php

<?php

session_start();
include 'koneksi.php';

$username = $_POST['username'];
$password = $_POST['password'];

$login = mysqli_query($konek,"SELECT * FROM tb_login WHERE user='$username' AND pass='$password' AND blokir='N'");
$cek = mysqli_fetch_row($login);
if (count($cek) < 0) {
    $_SESSION['gagal']=0;
    echo "Login Berhasil";
}
else{
     $_SESSION['gagal']++;
    if($_SESSION['gagal'] < 3){
        header('location:login.php');
    } else {
        mysqli_query($konek,"UPDATE tb_login SET blokir='Y' WHERE user='$username'");
        echo "Selamat Anda diblokir";
    }
}

 ?>