<?php
//Start session
session_start();
//Include database connection details
require_once('koneksi_db.php');
//Array to store validation errors
$errmsg_arr = array();
//Validation error flag
$errflag = false;
//Function to sanitize values received from the form. Prevents SQL injection
function clean($str) {
$str = @trim($str);
if(get_magic_quotes_gpc()) {
$str = stripslashes($str);
}
return mysql_real_escape_string($str);
}
//Sanitize the POST values
$username = clean($_POST['username']);
$password = md5($_POST['password']);
//Input Validations
if($username == '') {
$errmsg_arr[] = 'Login ID missing';
$errflag = true;
}
if($password == '') {
$errmsg_arr[] = 'Password missing';
$errflag = true;
}
//If there are input validations, redirect back to the login form
if($errflag) {
$_SESSION['ERRMSG_ARR'] = $errmsg_arr;
session_write_close();
header("location: index.php");
exit();
}
//Create query
$qry="SELECT * FROM data_pakar WHERE username='$username' AND password='".md5($_POST['password'])."'";
$result=mysql_query($qry);
//Check whether the query was successful or not
if($result) {
if(mysql_num_rows($result) == 1) {
//Login Successful
session_regenerate_id();
$member = mysql_fetch_assoc($result);
$_SESSION['SESS_USERNAME'] = $member['username'];
header("location: pakar_index.php");
exit();
}
else {
//Login failed
echo "<meta http-equiv=\"refresh\" content=\"0; url=index.php?page=gagal_login2\">";
exit();
}
}else {
die("Query failed");
}
$act=$_GET['act'];
if ($act=="logout"){
session_start();
unset($_SESSION['SESS_USERNAME']);
"<meta http-equiv=\"refresh\" content=\"0; url=index.php>";
}
?>
