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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 |
|---|---|
| 730 | * @return string|null Title when retrieving, null when displaying or failure. |
| 731 | */ |
| 732 | function single_term_title( $prefix = '', $display = true ) { |
| 733 | $term = get_queried_object(); |
| 734 | |
| 735 | if ( !$term ) |
| 736 | return; |
| 737 | |
| 738 | if ( is_category() ) |
| 739 | $term_name = apply_filters( 'single_cat_title', $term->name ); |
| 740 | elseif ( is_tag() ) |
| 741 | $term_name = apply_filters( 'single_tag_title', $term->name ); |
| 742 | elseif ( is_tax() ) |
| 743 | $term_name = apply_filters( 'single_term_title', $term->name ); |
| 744 | else |
| 745 | return; |
| 746 | |
| 747 | if ( empty( $term_name ) ) |
| 748 | return; |