So I've got to edit my 404 page. Since my client's website has 5 languages, I'd like to let him edit and translate the 404 page by himself, with normal WordPress editor. Also, we're currently using Polylang as the localization plugin.

Is there a way to have the theme's 404.php as a regular page?

I've tried to create a page and then assign it to the 404 template via template name, but it doesn't work, because it seems that $post is not available inside the template, so I cannot write contents.


Found a way.

  • Create a regular page for 404 content, say 'Page not found';

  • In your 404.php file, get that page data and then write down your content or whatever...

For example:

$page = get_page_by_title("Page not found");  
if($page) echo apply_filters('the_content',$page->post_content);

Obviously, you can do a lot more...


First of all, you should avoid Error 404 on your sites absolutely and unconditionally.

Second, you can use a text widget somewhere on the 404.php page. Put the following code into the functions.php to register a sidebar to put the widget in:


function error_404_widget_init() {

    register_sidebar( array(
        'name'          => 'Error 404 widget',
        'id'            => 'error_404',
        'before_widget' => '<div>',
        'after_widget'  => '</div>',
        'before_title'  => '<h2 class="rounded">',
        'after_title'   => '</h2>',
    ) );

add_action( 'widgets_init', 'error_404_widget_init' );

And add the following into 404.php template file, in the place you like:

dynamic_sidebar( 'error_404' );

After that you'll be able to add the widget to the sidebar and specify a text for each language using Polylang's default functionality.

  • I tried before finding my own solution, but it seems there are problems with the theme customizer about widgets for 404. I think some bug. Anyway I think using the content of a custom page is far more a versatile way :) – Luca Reghellin Dec 14 '16 at 18:07

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