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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 |
|---|---|
| 3013 | /** |
| 3014 | * Filters whether a post deletion should take place. |
| 3015 | * |
| 3016 | * @since 4.4.0 |
| 3017 | * |
| 3018 | * @param bool|null $delete Whether to go forward with deletion. |
| 3019 | * @param WP_Post $post Post object. |
| 3020 | * @param bool $force_delete Whether to bypass the Trash. |
| 3021 | */ |
| 3022 | $check = apply_filters( 'pre_delete_post', null, $post, $force_delete ); |
| 3023 | if ( null !== $check ) { |
| 3024 | return $check; |
| 3025 | } |
| 3026 | |
| 3027 | /** |
| 3028 | * Fires before a post is deleted, at the start of wp_delete_post(). |
| 3029 | * |
| 3030 | * @since 3.2.0 |
| 3031 | * @since 5.5.0 Added the `$post` parameter. |