hai

<?php
include("../../plugin/php/config.php");

$username = mysql_real_escape_string($_POST['username']);
$pass = mysql_real_escape_string(md5($_POST['pass']));

$sql ="SELECT*FROM t_admin WHERE username_admin='$username' AND pass_admin='$pass' AND stat_admin='1'";
$result = mysqli_query($conn,$sql);
if(mysqli_num_rows($result)>0)
{
	$data_admin = mysql_fetch_array($query);
	session_start();
	$_SESSION['admin'] = $data_admin['id_admin'];
	echo"Sukses";
}
else
{
	echo"Gagal";
}

?>