Don't allow people to view the default WordPress registration page

wpse45134.php

<?php
/*
Plugin Name: Registration Redirect
Description: Don't allow people to view the default registration page
Author: Christopher Davis
Author URI: http://christopherdavis.me
License: GPL2
*/

add_action( 'login_form_register', 'wpse45134_catch_register' );
/**
 * Redirects visitors to `wp-login.php?action=register` to 
 * `site.com/register`
 */
function wpse45134_catch_register()
{
    wp_redirect( home_url( '/register' ) );
    exit(); // always call `exit()` after `wp_redirect`
}

add_action( 'login_form_lostpassword', 'wpse45134_filter_option' );
add_action( 'login_form_retrievepassword', 'wpse45134_filter_option' );
/**
 * Simple wrapper around a call to add_filter to make sure we only
 * filter an option on the login reset password page.
 */
function wpse45134_filter_option()
{
    // use __return_zero because pre_option_{$opt} checks
    // against `false`
    add_filter( 'pre_option_users_can_register', '__return_zero' );
}

You could also use the login_redirect filter.

I don't think that applicable for this use case. They just wanted to stop people from viewing the default registration form.

Ah, ok. I thought this was a more general version as a plugin.

Nah, good idea for a plugin, though!

login_form_{$action} fires right after login_init, so it's a bit different than login_redirect.

This plugin is currently not letting me goto /wp-admin once logged in as an admin. Any suggestions on how I could edit the plugin to allow access to wp-admin?

Chris, awesome piece of work here. I originally tried a filter on [register_url](https://codex.wordpress.org/Plugin_API/Filter_Reference/register_url), for whatever reason, it didn't work. Not sure what I did wrong there, but this code worked perfectly. Cheers!

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