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Checks if the current post is a custom post type, returns boolean
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| <?php | |
| /** | |
| * Checks if a post is a custom post type, returns boolean. | |
| * | |
| * @author Joshua David Nelson | |
| * @link http://joshuadnelson.com/code/is_custom_post_type/ | |
| * | |
| * @param int $post_id The post id, defaults to the current post. | |
| * @return bool | |
| */ | |
| if ( !function_exists( 'is_custom_post_type' ) ) { | |
| function is_custom_post_type( $post_id = 0 ) { | |
| // find custom post types | |
| $args = array( | |
| //'public' => true, // -- uncomment if you only want "public" cpts | |
| '_builtin' => false, | |
| ); | |
| $public_custom_post_types = get_post_types( $args, 'names' ); | |
| // if there are no custom post types, then the current post can't be one | |
| if( empty( $public_custom_post_types ) ) | |
| return false; | |
| // access global variable if the passed post id invalid or not provided. | |
| $post_id = absint( $post_id ) ?: get_the_ID(); | |
| // if we don't have a valid id, we're in a context that this function works. | |
| if ( ! $post_id ) { | |
| return false; | |
| } | |
| // get the current post type, returns a string or false on failure | |
| $post_type = get_post_type( $post_id ); | |
| // check if current post type is a custom post type | |
| if ( $post_type && in_array( $post_type, $public_custom_post_types ) ) { | |
| return true; | |
| } | |
| // if all else fails, return false | |
| return false; | |
| } | |
| } |
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