// post data
<?php
If  (isset($_POST['user'], $_POST['pass'],$_POST['soacc'] )) {
    $Host = 'mysql.hostinger.vn';
    $User = 'u608213047_user';
    $Pass = '123456';
    $MyDB = 'u608213047_ptc';
    $_POST['user'] = strip_tags($_POST['user']);
    $_POST['user'] = addslashes($_POST['user']);
    $_POST['pass'] = strip_tags($_POST['pass']);
    $_POST['pass'] = addslashes($_POST['pass']);
    $_POST['soacc'] = strip_tags($_POST['soacc']);
    $_POST['soacc'] = addslashes($_POST['soacc']);
    $user = $_POST['user'];
    $pass = $_POST['pass'];
    $soacc = $_POST['soacc'];
    $con = mysqli_connect($Host,$User,$Pass,$MyDB);
    If (mysqli_connect_errno())
    {
      Echo 'CANT_CONNECT';
    }else {
            $Query = Mysqli_Query($con,"SELECT * FROM dblogin WHERE acc='" . $user . "' and pass='" . $pass . "'");
            If (!$Query || mysqli_num_rows($Query) == 0) {
                Echo 'EXIST';
            }
            Else {
                    mysqli_query($con,"UPDATE dblogin SET So_Acc='".$SoAcc ."' WHERE id='".$id."'");
                    Echo 'DONE';
            }
            mysqli_close($con);
        }
} Else {
    Echo 'ERROR';
}
?>




//login
<?php
If (isset($_POST['user'], $_POST['pass'])) {
    $Host = 'mysql.hostinger.vn';
    $User = 'u608213047_user';
    $Pass = '123456';
    $MyDB = 'u608213047_ptc';
    $_POST['user'] = strip_tags($_POST['user']);
    $_POST['user'] = addslashes($_POST['user']);
    $_POST['pass'] = strip_tags($_POST['pass']);
    $_POST['pass'] = addslashes($_POST['pass']);
    $user = $_POST['user'];
    $pass = $_POST['pass'];
    $con=mysqli_connect($Host,$User,$Pass,$MyDB);
    If (mysqli_connect_errno())
    {
        Echo 'CANT_CONNECT';
    } else {
        $Query = Mysqli_Query($con,"SELECT * FROM dblogin WHERE Account='" . $user . "' and Password='" . $pass . "'");
        If (!$Query || mysqli_num_rows($Query) == 0) {
            Echo 'WRONG';
        } Else {
            $row = mysqli_fetch_array($Query, MYSQL_ASSOC);
            Echo 'OK-' . $row['So_Acc'] . '-' . $row['Status'] . '-' . $row['Thong_Bao_Tu_Admin'] ;
        }
        mysqli_close($con);
    }
} Else {
    Echo 'ERROR';
}
?>