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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 |
---|---|
3442 | } elseif ( 'trash' === $status ) { |
3443 |
|
3444 | /** |
3445 | * Fires when a comment is attempted on a trashed post. |
3446 | * |
3447 | * @since 2.9.0 |
3448 | * |
3449 | * @param int $comment_post_ID Post ID. |
3450 | */ |
3451 | do_action( 'comment_on_trash', $comment_post_ID ); |
3452 |
|
3453 | return new WP_Error( 'comment_on_trash' ); |
3454 |
|
3455 | } elseif ( ! $status_obj->public && ! $status_obj->private ) { |
3456 |
|
3457 | /** |
3458 | * Fires when a comment is attempted on a post in draft mode. |
3459 | * |
3460 | * @since 1.5.1 |