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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 |
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1878 |
|
1879 | /** |
1880 | * Fires when deleting a term, before any modifications are made to posts or terms. |
1881 | * |
1882 | * @since 4.1.0 |
1883 | * |
1884 | * @param int $term Term ID. |
1885 | * @param string $taxonomy Taxonomy Name. |
1886 | */ |
1887 | do_action( 'pre_delete_term', $term, $taxonomy ); |
1888 |
|
1889 | // Update children to point to new parent. |
1890 | if ( is_taxonomy_hierarchical( $taxonomy ) ) { |
1891 | $term_obj = get_term( $term, $taxonomy ); |
1892 | if ( is_wp_error( $term_obj ) ) { |
1893 | return $term_obj; |
1894 | } |
1895 | $parent = $term_obj->parent; |
1896 |
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