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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 |
|---|---|
| 3744 | * |
| 3745 | * @since 3.2.0 |
| 3746 | * @since 5.5.0 Added the `$post` parameter. |
| 3747 | * |
| 3748 | * @see wp_delete_post() |
| 3749 | * |
| 3750 | * @param int $post_id Post ID. |
| 3751 | * @param WP_Post $post Post object. |
| 3752 | */ |
| 3753 | do_action( 'before_delete_post', $post_id, $post ); |
| 3754 | |
| 3755 | delete_post_meta( $post_id, '_wp_trash_meta_status' ); |
| 3756 | delete_post_meta( $post_id, '_wp_trash_meta_time' ); |
| 3757 | |
| 3758 | wp_delete_object_term_relationships( $post_id, get_object_taxonomies( $post->post_type ) ); |
| 3759 | |
| 3760 | $parent_data = array( 'post_parent' => $post->post_parent ); |
| 3761 | $parent_where = array( 'post_parent' => $post_id ); |
| 3762 | |