Codex

Function Reference/post type exists

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Description

This Conditional Tag checks if a post type exists by passing a post type name an argument. This is a boolean function and uses a global $wp_post_types variable for checking the post type existence, meaning it returns either TRUE if the post type exists or FALSE if it doesn't exist. The post type must be a registered post type.

Usage

<?php post_type_exists( $post_type ); ?>

Parameters

$post_type
(string) (required) Post type.
Default: None

Return Value

(boolean) 
True on success, false on failure.

Examples 

if(post_type_exists('book')) {
  echo 'the Book post type exists';
}

$exists = post_type_exists('post');
//returns true

$exists = post_type_exists('page');
//returns true

$exists = post_type_exists('book');
//returns true if book is a registered post type

$exists = post_type_exists('xyz');
//returns false if xyz is not a registered post type

Change Log

Source File

post_type_exists() is located in wp-includes/post.php.

Related

taxonomy_exists()

Post Types: register_post_type(), add_post_type_support(), remove_post_type_support(), post_type_supports(), post_type_exists(), set_post_type(), get_post_type(), get_post_types(), get_post_type_object(), get_post_type_capabilities(), get_post_type_labels(), is_post_type_hierarchical(), is_post_type_archive(), post_type_archive_title()

Conditional Tags: comments_open(), is_404(), is_admin(), is_admin_bar_showing(), is_archive(), is_attachment(), is_author(), is_category(), is_comments_popup(), is_date(), is_day(), is_feed(), is_front_page(), is_home(), is_local_attachment(), is_multi_author, is_month(), is_new_day(), is_page(), is_page_template(), is_paged(), is_plugin_active(), is_plugin_active_for_network(), is_plugin_inactive(), is_plugin_page(), is_post_type_archive(), is_preview(), is_search(), is_single(), is_singular(), is_sticky(), is_tag(), is_tax(), is_taxonomy_hierarchical(), is_time(), is_trackback(), is_year(), in_category(), in_the_loop(), is_active_sidebar(), is_active_widget(), is_blog_installed(), is_rtl(), is_dynamic_sidebar(), is_user_logged_in(), has_excerpt(), has_post_thumbnail(), has_tag(), pings_open(), email exists(), post_type_exists(), taxonomy_exists(), term_exists(), username exists(), wp_attachment_is_image(), wp_script_is()

See also index of Function Reference and index of Template Tags.
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