Plugin not changing link

Thanks. Any tips on how I can change the PHP to have it direct to the new URL (using slug name “example”)? I imagine that the changes have to come somewhere in here:

// check if not login-page or admin-panel
		if ($url !== '/wp-login.php' && substr($url, 0, 9) !== '/wp-admin' && substr($url, 0, 11) !== '/xmlrpc.php')
		{
			$authMethod = get_option('basic_authentication_method', ''); 

			// check method and result
			if ($authMethod === 'predefined')
			{
				session_start();
				$login = basic_authentication_doLogin();

				if (!basic_authentication_predefinedLoggedIn())
				{
					basic_authentication_showLoginForm($login, implode('?', array($url, $crap)));
					exit;
				}

			}
			else if ($authMethod === 'wp-login'	&& !is_user_logged_in())
			{
				header('LOCATION: ' . site_url('wp-login.php?redirect_to=' . urlencode($redirect_url) . '&reauth=1'));
				exit;
			}
		}
	}

Gave that a shot, but it ended up breaking my WP. Had to revert to the old code via FTP in order to get it back up and running.

This is the error message it gave me: “Parse error: syntax error, unexpected $end …/wp-content/plugins/basic-authentication/basic-authentication.php on line 144” (What’s odd is that the code seems to stop at line 143…)

And this is the final code I had in there after I made the replacement you provided:

<?php 

/*
Plugin Name: Basic Authentication
Plugin URI: http://www.cuvedev.net/2010/07/wordpress-plugin-authentication/
Description: Disable access to wordpress if not logged in
Author: Klaas Cuvelier
Author URI: http://www.cuvedev.net
Version: 1.9
*/

	/**
	 * WordPress contest which ask authentication to the users before showing the site
	 *
	 * @copyright 	Klaas Cuvelier
	 * @author 		Klaas Cuvelier, [email protected] (http://www.cuvedev.net)
	 * @version		1.9
	 * @license		GPL v2.0
	 *
	 */

	add_action('init', 'basic_auth_init');
	add_action('admin_menu', 'basic_auth_admin');

	// do the checking
	function basic_auth_init()
	{
		// check if plugin is enabled
		if (get_option('basic_authentication_enabled', '') !== 'on')
		{
			return;
		}

		// get current page
		$url = str_replace(site_url(), '', 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']);
		list($url, $crap) = explode('?', $url);

        // extra check when WP isn't installed in root dir - thx @ Rob Record
        $wp_dir = str_replace('http://' . $_SERVER['HTTP_HOST'], '', site_url());
        $redirect_url = $wp_dir . $url;

        // check if not login-page or admin-panel
        if ($url !== '/wp-login.php' && substr($url, 0, 9) !== '/wp-admin' && substr($url, 0, 11) !== '/xmlrpc.php' && substr($url, 1) != get_option('custom_wpadmin_slug'))
           {
	            $authMethod = get_option('basic_authentication_method', ''); 

	            // check method and result
	            if ($authMethod === 'predefined')
	            {
		            session_start();
		            $login = basic_authentication_doLogin();

		            if (!basic_authentication_predefinedLoggedIn())
		            {
			            basic_authentication_showLoginForm($login, implode('?', array($url, $crap)));
			            exit;
		            }

	            }
	            else if ($authMethod === 'wp-login'	&& !is_user_logged_in())
	            {
	            if (get_option('custom_wpadmin_slug') != '') {
		            header('LOCATION: ' . site_url(get_option('custom_wpadmin_slug')));
		            exit;
	            } else {
		            header('LOCATION: ' . site_url('wp-login.php?redirect_to=' . urlencode($redirect_url) . '&reauth=1'));
		            exit;
	            }
	        }
        }

	// add to admin menu
	function basic_auth_admin()
	{
		add_options_page('Basic Authentication Options', 'Basic Authentication', 'manage_options', 'basic-authentication', 'basic_auth_options');
	}

	// check if basic_authentication logged in
	function basic_authentication_predefinedLoggedIn()
	{
		return $_SESSION['basic_authentication_loggedin'] === true && $_SESSION['basic_authentication_pwd'] === md5(get_option('basic_authentication_password'));
	}

	// basic authentication check if try to login
	function basic_authentication_doLogin()
	{
		// time to deny logging in when tried to much (in minutes)
		$timeBlocked = 15;

		if (is_numeric($_SESSION['basic_authentication_tries']) && 	$_SESSION['basic_authentication_tries'] >= 3)
		{
			$_SESSION['basic_authentication_tries'] = 0;
			$_SESSION['basic_authentication_block'] = time();
		}

		if (is_numeric($_SESSION['basic_authentication_block']))
		{
			if (time() - $_SESSION['basic_authentication_block'] > ($timeBlocked * 60))
			{
				$_SESSION['basic_authentication_block'] = 'NO';
				unset($_SESSION['basic_authentication_block']);
			}
			else
			{
				return 'Too many login attempts: Your account has been blocked temporarily.';
			}
		}

		if (isset($_POST['pwd']))
		{
			if ($_POST['pwd'] === get_option('basic_authentication_password'))
			{
				$_SESSION['basic_authentication_loggedin'] 	= true;
				$_SESSION['basic_authentication_tries'] 	= 0;
				$_SESSION['basic_authentication_pwd'] 		= md5(get_option('basic_authentication_password'));
				return 'OK';
			}
			else
			{
				$_SESSION['basic_authentication_tries'] = is_numeric($_SESSION['basic_authentication_tries']) ? $_SESSION['basic_authentication_tries'] + 1: 1;
				return 'ERROR';
			}
		}
	}

	// show basic_authentication login form
	function basic_authentication_showLoginForm($login, $url)
	{
		include(dirname(__FILE__) . '/basic-auth-login.php');
	}

	// basic auth options
	function basic_auth_options ()
	{
		include(dirname(__FILE__) . '/basic-auth-options.php');
	}

?>