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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 55 | <?php |
| 56 | |
| 57 | /** |
| 58 | * Allow child themes and plugins to filter the display of the categories in the article header. |
| 59 | * |
| 60 | * @since Twenty Twenty 1.0 |
| 61 | * |
| 62 | * @param bool Whether to show the categories in article header, Default true. |
| 63 | */ |
| 64 | $show_categories = apply_filters( 'twentytwenty_show_categories_in_entry_header', true ); |
| 65 | |
| 66 | if ( true === $show_categories && has_category() ) { |
| 67 | ?> |
| 68 | |
| 69 | <div class="entry-categories"> |
| 70 | <span class="screen-reader-text"><?php _e( 'Categories', 'twentytwenty' ); ?></span> |
| 71 | <div class="entry-categories-inner"> |
| 72 | <?php the_category( ' ' ); ?> |
| 73 | </div><!-- .entry-categories-inner --> |