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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 |
|---|---|
| 3383 | /** |
| 3384 | * Filters whether a post deletion should take place. |
| 3385 | * |
| 3386 | * @since 4.4.0 |
| 3387 | * |
| 3388 | * @param bool|null $delete Whether to go forward with deletion. |
| 3389 | * @param WP_Post $post Post object. |
| 3390 | * @param bool $force_delete Whether to bypass the Trash. |
| 3391 | */ |
| 3392 | $check = apply_filters( 'pre_delete_post', null, $post, $force_delete ); |
| 3393 | if ( null !== $check ) { |
| 3394 | return $check; |
| 3395 | } |
| 3396 | |
| 3397 | /** |
| 3398 | * Fires before a post is deleted, at the start of wp_delete_post(). |
| 3399 | * |
| 3400 | * @since 3.2.0 |
| 3401 | * @since 5.5.0 Added the `$post` parameter. |