apply_filters( 'is_post_type_viewable', bool $is_viewable, WP_Post_Type $post_type )

Filters whether a post type is considered “viewable”.


Description

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.


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Parameters

$is_viewable

(bool) Whether the post type is "viewable" (strict type).

$post_type

(WP_Post_Type) Post type object.


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Source

File: wp-includes/post.php

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Changelog

Changelog
Version Description
5.9.0 Introduced.

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