Filter hook 'is_post_type_viewable'
in WP Core File wp-includes/post.php at line 2397
Description
Filters whether a post type is considered "viewable". The returned filtered value must be a boolean type to ensure `is_post_type_viewable()` only returns a boolean. This strictness is by design to maintain backwards-compatibility and guard against potential type errors in PHP 8.1+. Non-boolean values (even falsey and truthy values) will result in the function returning false.
Occurrences
| Filename |
Line Number |
| wp-includes/post.php |
2397 |
Parameters
| Type |
Name |
Description |
| bool |
$is_viewable |
Whether the post type is "viewable" (strict type). |
| WP_Post_Type |
$post_type |
Post type object. |
PHP Doc
/**
* Filters whether a post type is considered "viewable".
*
* The returned filtered value must be a boolean type to ensure
* `is_post_type_viewable()` only returns a boolean. This strictness
* is by design to maintain backwards-compatibility and guard against
* potential type errors in PHP 8.1+. Non-boolean values (even falsey
* and truthy values) will result in the function returning false.
*
* @since 5.9.0
*
* @param bool $is_viewable Whether the post type is "viewable" (strict type).
* @param WP_Post_Type $post_type Post type object.
*/