the_category – Hook | Developer.WordPress.org

apply_filters( ‘the_category’, string $thelist, string $separator, string $parents )

Filters the category or list of categories.

Parameters

$theliststring: List of categories for the current post.
$separatorstring: Separator used between the categories.
$parentsstring: How to display the category parents. Accepts 'multiple', 'single', or empty.

return apply_filters( 'the_category', $thelist, $separator, $parents );

Used by	Description
Walker_Category_Checklist::start_el()`wp-admin/includes/class-walker-category-checklist.php`	Start the element output.
wp_popular_terms_checklist()`wp-admin/includes/template.php`	Retrieves a list of the most popular terms from the specified taxonomy.
wp_link_category_checklist()`wp-admin/includes/template.php`	Outputs a link category checklist element.
get_the_category_list()`wp-includes/category-template.php`	Retrieves category list for a post in either HTML list or custom format.

Version	Description
1.2.0	Introduced.

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