progonkpa

I sure can.

{
    "fragment_prefix": "i",
    "position": "top",
    "start": "2",
    "show_heading_text": "1",
    "heading_text": "Contents",
    "enabled_post_types": {
        "post": "post",
        "page": "page",
        "custom_css": "custom_css",
        "documentaries": "documentaries"
    },
    "auto_insert_post_types": {
        "post": "post",
        "page": "page",
        "custom_css": "custom_css",
        "documentaries": "documentaries"
    },
    "show_hierarchy": "1",
    "counter": "decimal",
    "smooth_scroll": "1",
    "smooth_scroll_offset": "30",
    "width": "100%",
    "width_custom": "275",
    "width_custom_units": "px",
    "wrapping": "none",
    "title_font_size": "120",
    "title_font_size_units": "%",
    "title_font_weight": "500",
    "font_size": "95",
    "font_size_units": "%",
    "theme": "transparent",
    "custom_background_colour": "#fff",
    "custom_border_colour": "#ddd",
    "custom_title_colour": "#999",
    "custom_link_colour": "#428bca",
    "custom_link_hover_colour": "#2a6496",
    "custom_link_visited_colour": "#428bca",
    "lowercase": "1",
    "heading_levels": {
        "2": "2",
        "3": "3",
        "4": "4",
        "5": "5",
        "6": "6"
    },
    "css_container_class": "",
    "toc_loading": "js",
    "child_font_size": "90",
    "child_font_size_units": "%",
    "visibility": "1",
    "sticky-toggle-width": "auto",
    "sticky-toggle-height": "auto",
    "sticky-toggle-open-button-text": "Index",
    "heading-text-direction": "ltr",
    "fixedtoc": "0",
    "highlightheadings": "0",
    "shrinkthewidth": "0",
    "custom_para_number": "1",
    "heading_text_tag": "p",
    "counter-position": "inside",
    "sticky-toggle-position": "left",
    "sticky-toggle-alignment": "top",
    "headings-padding-top_units": "px",
    "headings-padding-bottom_units": "px",
    "headings-padding-left_units": "px",
    "headings-padding-right_units": "px",
    "sticky-toggle-width-custom": "",
    "sticky-toggle-height-custom": "",
    "headings-padding-top": "0",
    "headings-padding-bottom": "0",
    "headings-padding-left": "0",
    "headings-padding-right": "0",
    "exclude": "",
    "mobile_smooth_scroll_offset": "0",
    "restrict_path": "",
    "widget_affix_selector": "",
    "visibility_on_header_text": "0",
    "visibility_hide_by_default": "0",
    "toc-run-on-amp-pages": "0",
    "sticky-toggle": "0",
    "sticky-toggle-open": "0",
    "sticky-toggle-close-on-mobile": "0",
    "sticky-toggle-close-on-desktop": "0",
    "toc_wrapping": "0",
    "headings-padding": "0",
    "hyphenate": "0",
    "include_homepage": "0",
    "include_category": "0",
    "include_product_category": "0",
    "exclude_css": "0",
    "inline_css": "0",
    "add_request_uri": "0",
    "remove_special_chars_from_title": "0",
    "mediavine-create": "0",
    "goodlayers-core": "0"
}

I removed the post with the video, however, the video is still available here.

I also tested some more, this time with a child post without a ToC and with ToC disabled in the post settings, however, the behavior is identical as before, somewhat to my surprise 🙂

Of course @magazine3

The name of the plugin is ‘Insert Pages’.

Wow @rickymccallum87, that’s it 🙂
Tested and working.

Afaik, these are all possible scenarios.
http://localhost/?cat=cat1,cat2
http://localhost/category/cat1,cat2/
http://localhost/category/cat1/cat2/

So I refactored the code to cover all scenarios.

add_filter('get_the_archive_title', 'wpsf_multiple_categories_title', 10, 3);
function wpsf_multiple_categories_title($title, $original_title, $prefix)
{
    $cats_query_data = get_categories_query_data();

    if (!$cats_query_data['separator'])
        return $original_title;

    $category_slugs = explode($cats_query_data['separator'], $cats_query_data['args']);
    // Convert category slugs to title case category names
    $category_names = array_map(function ($slug) {
        return get_term_by('slug', $slug, 'category')->name;
    }, $category_slugs);

    return implode(', ', $category_names);
}

function get_categories_query_data(): array
{
    if (!is_category())
        return ['separator' => 0];

    if (strpos($_REQUEST['cat'], ','))
        return ['separator' => ',', 'args' => $_REQUEST['cat']];

    global $wp_query;
    $category_name_args = $wp_query->query['category_name'];

    if (strpos($category_name_args, ',')) {
        return ['separator' => ',', 'args' => $category_name_args];
    } elseif (strpos($category_name_args, '/')) {
        return ['separator' => '/', 'args' => $category_name_args];
    } else {
        return ['separator' => 0];
    }
}

@soberbanda sure.

When you click a category, you see all the posts from the category you clicked.
But what if you want to display the posts from 2 or more categories?
How can one do that?

I was hoping that WordPress provided a way to do that, that’s what I was talking about with my example localhost/?cat=1&cat=2.

If WordPress doesn’t have a way of doing this, one can always fall back on plugins (recommendations?) or coding it.

I noticed now when I’m logged in as admin on the reading page (not edit UI), the checkbox is visible.
While as anonymous user, I see a checkbox talking about comment form cookies.
Does that ring a bell for you somewhere?