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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 |
---|---|
2541 | * |
2542 | * @since 5.1.0 |
2543 | * |
2544 | * @param object $duplicate_term Duplicate term row from terms table, if found. |
2545 | * @param string $term Term being inserted. |
2546 | * @param string $taxonomy Taxonomy name. |
2547 | * @param array $args Arguments passed to wp_insert_term(). |
2548 | * @param int $tt_id term_taxonomy_id for the newly created term. |
2549 | */ |
2550 | $duplicate_term = apply_filters( 'wp_insert_term_duplicate_term_check', $duplicate_term, $term, $taxonomy, $args, $tt_id ); |
2551 |
|
2552 | if ( $duplicate_term ) { |
2553 | $wpdb->delete( $wpdb->terms, array( 'term_id' => $term_id ) ); |
2554 | $wpdb->delete( $wpdb->term_taxonomy, array( 'term_taxonomy_id' => $tt_id ) ); |
2555 |
|
2556 | $term_id = (int) $duplicate_term->term_id; |
2557 | $tt_id = (int) $duplicate_term->term_taxonomy_id; |
2558 |
|
2559 | clean_term_cache( $term_id, $taxonomy ); |