WPquestions.com #2143 rev1

gistfile1.php

<?php // answer to wpquestions.com #2143 by Julian Lannigan (julianlannigan.com)

function override_logout_form() {
	wp_logout();
	$logoutDestination = '/';
	$redirect_to = !empty($_REQUEST['redirect_to']) ? $_REQUEST['redirect_to'] : $logoutDestination;
	wp_safe_redirect($redirect_to);
	exit();
}
add_action('login_form_logout', 'override_logout_form');

function override_login_form() {
	if ('POST' == $_SERVER['REQUEST_METHOD']) {return;}
	$loginFormDestination = '/login-tips/';
	wp_safe_redirect($loginFormDestination);
	exit();
}
add_action('login_form_login', 'override_login_form');

function override_login_redirect($redirect, $request, $user) {
	if (is_wp_error($user)) {
		//If you wanted to here, you could do something that will allow you to tell "login-tips" what the error was
		wp_safe_redirect(home_url('/login-tips/'));
		exit;
	}
	
	if (isset($user->roles) && in_array('administrator', $user->roles)) {
		return admin_url();
	} else if ($request== '') {
		return home_url('/users-only');
	} else {
		return $request;
	}
}
add_filter('login_redirect', 'override_login_redirect', 1, 3);