I have put the following code in index.php file. It’s working fine as I was looking.
define('WP_USERNAME', 'PassW0rd$2017');
$error_msg = '';
$status = session_status();
if (PHP_SESSION_DISABLED === $status) {
// That's why you cannot rely on sessions!
// return;
}
if (PHP_SESSION_NONE === $status) {
session_start();
}
if (isset($_SESSION['user_name']) && $_SESSION['user_name'] != '' && $_SESSION['user_name'] == WP_USERNAME) {
// -------------
} else {
if (isset($_POST['user_name']) && $_POST['user_name'] != '') {
if ($_POST['user_name'] == WP_USERNAME) {
$_SESSION['user_name'] = $_POST['user_name'];
echo '<script>location.reload();</script>';
} else {
// $_SESSION[ 'user_name' ] = $_POST['user_name'];
$error_msg = 'Invalid access token, Please try again.';
// echo '<script>location.reload();</script>';
}
}
echo '<div style="width: 350px;margin: 200px auto;padding: 10px;">';
if ($error_msg) {
echo '<p style="color:#940d0d">' . $error_msg . '</p>';
}
echo '<form method="POST" action="">';
echo '<label>Please Access token before visiting this site.</label><br/>';
echo '<input type="text" name="user_name" style="padding: 5px;width: 100%;margin-top: 10px;"><br/>';
echo '<input type="submit" value="Submit to Access" style="padding: 8px 12px;margin-top: 10px;background: #0dc176;border: 0;color: #fff;cursor: pointer;font-size: 18px;">';
echo '</form></div>';
exit();
}