check login

check_login.php

<?php

// http://prajapatinilesh.wordpress.com/2009/01/14/manually-set-php-session-timeout-php-session/
// Change the session timeout value to 30 minutes  // 8*60*60 = 8 hours
//ini_set('session.gc_maxlifetime', 30*60);
//// php.ini setting required for session timeout.
//
//ini_set('session.gc_maxlifetime',30);
//ini_set('session.gc_probability',1);
//ini_set('session.gc_divisor',1);
//————————————————————————————–
//if you want to change the  session.cookie_lifetime.
//This required in some common file because to get the session values in whole application we need to write session_start();  to each file then only will get $_SESSION global variable values.

//$sessionCookieExpireTime=8*60*60;
//session_set_cookie_params($sessionCookieExpireTime);

// Reset the expiration time upon page load //session_name() is default name of session PHPSESSID
//
//if (isset($_COOKIE[session_name()]))
//    setcookie(session_name(), $_COOKIE[session_name()], time() + $sessionCookieExpireTime, "/");
//————————————————————————————–
//To get the session cookie set param values.
/*
$CookieInfo = session_get_cookie_params();

echo "<pre>";
echo "Session information session_get_cookie_params function :: <br />";
print_r($CookieInfo);
echo "</pre>";
*/
session_start();
if (!isset($_SESSION['CREATED'])) {
    $_SESSION['CREATED'] = time();
} else if (time() - $_SESSION['CREATED'] > 60 * 60 * 2) {
    // session started more than 30 minutes ago
    session_regenerate_id(true);    // change session ID for the current session an invalidate old session ID
    $_SESSION['CREATED'] = time();  // update creation time
}
if (isset($_SESSION['LAST_ACTIVITY']) && (time() - $_SESSION['LAST_ACTIVITY'] > 60 * 60 * 2)) {
    // last request was more than 30 minutes ago
    session_unset();     // unset $_SESSION variable for the run-time
    session_destroy();   // destroy session data in storage
}
$_SESSION['LAST_ACTIVITY'] = time(); // update last activity time stamp

//if(isset($_COOKIE['username'])&&($_COOKIE['username'] !="")){
if(isset($_SESSION['username'])&&($_SESSION['username'] !="")){
    //setcookie("username", $_COOKIE['username'], time() + 60 * 5, "/admin/");  /* expire in 1 hour */
    $uname= $_SESSION['username'];
    if (preg_match('/index.php$/misu', $_SERVER['PHP_SELF'])){
        header("location:home.php");
    }
}else{
    if (!preg_match('/index.php$/misu', $_SERVER['PHP_SELF']))
        header("location:index.php");
}
define("HOSTPATH",'/admin/');