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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 |
|---|---|
| 723 | * @return string|null Title when retrieving, null when displaying or failure. |
| 724 | */ |
| 725 | function single_term_title( $prefix = '', $display = true ) { |
| 726 | $term = get_queried_object(); |
| 727 | |
| 728 | if ( !$term ) |
| 729 | return; |
| 730 | |
| 731 | if ( is_category() ) |
| 732 | $term_name = apply_filters( 'single_cat_title', $term->name ); |
| 733 | elseif ( is_tag() ) |
| 734 | $term_name = apply_filters( 'single_tag_title', $term->name ); |
| 735 | elseif ( is_tax() ) |
| 736 | $term_name = apply_filters( 'single_term_title', $term->name ); |
| 737 | else |
| 738 | return; |
| 739 | |
| 740 | if ( empty( $term_name ) ) |
| 741 | return; |