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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 |
|---|---|
| 3200 | |
| 3201 | /** |
| 3202 | * Filters whether a post untrashing should take place. |
| 3203 | * |
| 3204 | * @since 4.9.0 |
| 3205 | * |
| 3206 | * @param bool|null $untrash Whether to go forward with untrashing. |
| 3207 | * @param WP_Post $post Post object. |
| 3208 | */ |
| 3209 | $check = apply_filters( 'pre_untrash_post', null, $post ); |
| 3210 | if ( null !== $check ) { |
| 3211 | return $check; |
| 3212 | } |
| 3213 | |
| 3214 | /** |
| 3215 | * Fires before a post is restored from the Trash. |
| 3216 | * |
| 3217 | * @since 2.9.0 |
| 3218 | * |