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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 |
|---|---|
| 794 | |
| 795 | if ( !$term ) |
| 796 | return; |
| 797 | |
| 798 | if ( is_category() ) |
| 799 | $term_name = apply_filters( 'single_cat_title', $term->name ); |
| 800 | elseif ( is_tag() ) |
| 801 | $term_name = apply_filters( 'single_tag_title', $term->name ); |
| 802 | elseif ( is_tax() ) |
| 803 | $term_name = apply_filters( 'single_term_title', $term->name ); |
| 804 | else |
| 805 | return; |
| 806 | |
| 807 | if ( empty( $term_name ) ) |
| 808 | return; |
| 809 | |
| 810 | if ( $display ) |
| 811 | echo $prefix . $term_name; |
| 812 | else |