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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 |
|---|---|
| 3024 | |
| 3025 | /** |
| 3026 | * Filters whether a post untrashing should take place. |
| 3027 | * |
| 3028 | * @since 4.9.0 |
| 3029 | * |
| 3030 | * @param bool $untrash Whether to go forward with untrashing. |
| 3031 | * @param WP_Post $post Post object. |
| 3032 | */ |
| 3033 | $check = apply_filters( 'pre_untrash_post', null, $post ); |
| 3034 | if ( null !== $check ) { |
| 3035 | return $check; |
| 3036 | } |
| 3037 | |
| 3038 | /** |
| 3039 | * Fires before a post is restored from the trash. |
| 3040 | * |
| 3041 | * @since 2.9.0 |
| 3042 | * |