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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 |
|---|---|
| 2013 | |
| 2014 | /** |
| 2015 | * Fires when deleting a term, before any modifications are made to posts or terms. |
| 2016 | * |
| 2017 | * @since 4.1.0 |
| 2018 | * |
| 2019 | * @param int $term Term ID. |
| 2020 | * @param string $taxonomy Taxonomy name. |
| 2021 | */ |
| 2022 | do_action( 'pre_delete_term', $term, $taxonomy ); |
| 2023 | |
| 2024 | // Update children to point to new parent. |
| 2025 | if ( is_taxonomy_hierarchical( $taxonomy ) ) { |
| 2026 | $term_obj = get_term( $term, $taxonomy ); |
| 2027 | if ( is_wp_error( $term_obj ) ) { |
| 2028 | return $term_obj; |
| 2029 | } |
| 2030 | $parent = $term_obj->parent; |
| 2031 | |