How to add a prefix to the Category Title for certain parent category ?

Hi there,

You can try this instead:

add_filter( 'get_the_archive_title', function( $title ) {

    $archive_cat = get_queried_object();

	if ($archive_cat->category_parent == 83) {
		$title = 'Prefix '. $title;
	}

return $title;
}, 50 );

Thanks, it works perfectly.

Can you explain about the value 50 ?
In some answers, I saw the value is 20.

Hello,

I also want to add a prefix to the Tag Title on tag archive.
What code should I insert for below code ?

add_filter( 'get_the_archive_title', function( $title ) {

$archive_cat = get_queried_object();

if ($archive_cat->category_parent == 83) {
$title = 'Prefix '. $title;
}

return $title;
}, 50 );

Thanks.

Try this:

add_filter( 'get_the_archive_title', function( $title ) {

    $archive_cat = get_queried_object();
	$tags = get_the_tags(get_queried_object()->ID);

	if ($archive_cat->category_parent == 83) {
		$title = 'Prefix '. $title;
	}

	if ($tags) {
		foreach($tags as $tag) {
			if ($tag->slug == 'test') {
				$title = 'Prefix '. $title;
			}
		}
	}

return $title;
}, 50 );

The prefix I want to add for the tag title is in tags archives, not tags in category archives.
Url example: http://www.generatepress.com/tag/flower

The code should be almost identical to the original code that worked. The only difference I can see is you'd use parent instead of category_parent: https://dev.to/ko31/return-value-of-getqueriedobject-in-wordpress-1h7n

These kinds of general WordPress coding questions are far better suited for a site like this: https://wordpress.stackexchange.com/

Thanks!