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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 |
|---|---|
| 3029 | * |
| 3030 | * @since 3.2.0 |
| 3031 | * @since 5.5.0 Added the `$post` parameter. |
| 3032 | * |
| 3033 | * @see wp_delete_post() |
| 3034 | * |
| 3035 | * @param int $postid Post ID. |
| 3036 | * @param WP_Post $post Post object. |
| 3037 | */ |
| 3038 | do_action( 'before_delete_post', $postid, $post ); |
| 3039 | |
| 3040 | delete_post_meta( $postid, '_wp_trash_meta_status' ); |
| 3041 | delete_post_meta( $postid, '_wp_trash_meta_time' ); |
| 3042 | |
| 3043 | wp_delete_object_term_relationships( $postid, get_object_taxonomies( $post->post_type ) ); |
| 3044 | |
| 3045 | $parent_data = array( 'post_parent' => $post->post_parent ); |
| 3046 | $parent_where = array( 'post_parent' => $postid ); |
| 3047 | |