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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 |
|---|---|
| 2039 | $wpdb->delete( $wpdb->term_taxonomy, array( 'term_taxonomy_id' => $tt_id ) ); |
| 2040 | |
| 2041 | /** |
| 2042 | * Fires immediately after a term taxonomy ID is deleted. |
| 2043 | * |
| 2044 | * @since 2.9.0 |
| 2045 | * |
| 2046 | * @param int $tt_id Term taxonomy ID. |
| 2047 | */ |
| 2048 | do_action( 'deleted_term_taxonomy', $tt_id ); |
| 2049 | |
| 2050 | // Delete the term if no taxonomies use it. |
| 2051 | if ( ! $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM $wpdb->term_taxonomy WHERE term_id = %d", $term ) ) ) { |
| 2052 | $wpdb->delete( $wpdb->terms, array( 'term_id' => $term ) ); |
| 2053 | } |
| 2054 | |
| 2055 | clean_term_cache( $term, $taxonomy ); |
| 2056 | |
| 2057 | /** |