February 12, 2011 
Definition:
function is_post_type_hierarchical( $post_type ) {}
Whether the post type is hierarchical.
A false return value might also mean that the post type does not exist.
Parameters
- string $post_type: Post type name
Return values
returns:Whether post type is hierarchical.
Source code
function is_post_type_hierarchical( $post_type ) {
if ( ! post_type_exists( $post_type ) )
return false;
$post_type = get_post_type_object( $post_type );
return $post_type->hierarchical;
}
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