在Wordpress中禁用404页面

Question

I want user to type any URL, example:

mywebsite.com/helloworld

After, with PHP i'd like to take slug helloworld , and print it on the page.

By default Wordpress shows 404 page. My idea was to disable this page, but not sure if there's a better solution.

How i can achieve that?

Answer 1

add_filter( 'pre_handle_404', function() {
    # you can do anything you want here but the easiest and safest is
    # wp_redirect( 'your url with query parameters from the failing 404 url' );
    # exit();
    return FALSE;
} );

Answer 2

404 is one of many HTTP Status Codes and as such if you completely remove the page, you'll need to both disable it in WordPress and on your web server, eg Apache or Nginx. This is not advised as it will make browsers display legitimate 404's with uncontrollable/undesirable responses.

If your question is "the default/my templates 404 page is terrible and I want to change it" refer to the Codex page on custom 404 page or use one of the numerous plugins designed to template error pages.

I would also, personally, advise against directing error pages to a page of your choosing, eg your homepage. This does very little except confuse people wondering why example.com/helloworld goes to example.com. From a programmers perspective, it could add time to your development as you may find it harder to diagnose why you're getting redirected to your homepage rather than it coming up with 404 or 500 which each tell you different information.

Answer 3

To go off of @magenta you can add conditions to this as well. This is what I did:

add_action( 'pre_handle_404', function() {
    global $wp_query;

    if(!$wp_query->found_posts){
        if($wp_query->query['post_type']=="clients"){
            wp_redirect( '/login' );
            exit;
        }
    }

    return FALSE;
} );