is_post_type_hierarchical( string $post_type ): bool
- Since
- 3.0.0
- Source
wp-includes/post.php:1539
Description
A false return value might also mean that the post type does not exist.
Compatibility
- WordPress
- since 3.0.0
- PHP
- 7.4–8.6-dev
- 6.7.7
- 6.8.8
- 6.9.7
- 7.0.4
- 7.1.0
Present in every tracked release (6.7.7 to 7.1.0), and compiles on PHP 7.4 through 8.6-dev.
Parameters
$post_typestring- Post type name
Return value
bool- Whether post type is hierarchical.
Performance profile
How much work a call to is_post_type_hierarchical() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.
- Cost class
- Trivial
- Scaling
- Constant
- Instructions
- 6–11
- Plugin surface
- None
- Called by
- 18
Touches nothing outside its own arguments.
No loop in the body: the same number of instructions runs whatever you pass in.
Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 12.
Nothing here hands control to plugin code.
18 places in core call this, so the cost is paid more often than your own code shows.
What one call costs · 2 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost is_post_type_hierarchical() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
!post_type_exists() | 6 | post_type_exists() |
post_type_exists() | 11 | post_type_exists(), get_post_type_object() |
Across PHP versions
Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 12 instructions, 6–11 executed per call, 1 branch. The work does not change between versions.
An instruction is not a fixed amount of time, so a matching count is not necessarily the same speed; what it rules out is a difference in the work itself.
Uses · 2
- post_type_exists()Determines whether a post type is registered.
- get_post_type_object()Retrieves a post type object by name.
Used by · 18
- WP_Posts_List_Table::column_default()Handles the default column output.
- WP_Posts_List_Table::column_title()Handles the title column output.
- WP_Posts_List_Table::get_table_classes()
- WP_Posts_List_Table::handle_row_actions()Generates and displays row action links.
- WP_Posts_List_Table::prepare_items()
- WP_Rewrite::generate_rewrite_rules()Generates rewrite rules from a permalink structure.
- _wp_menu_item_classes_by_context()Adds the class property classes for the current context, if applicable.
- build_query_vars_from_query_block()Helper function that constructs a WP_Query args array from a `Query` block properties.
- page_attributes_meta_box()Displays page attributes form fields.
- wp_ajax_inline_save()Handles Quick Edit saving a post from a list table via AJAX.
- wp_check_for_changed_dates()Checks for changed dates for published post objects and save the old date.
- wp_check_for_changed_slugs()Checks for changed slugs for published post objects and save the old slug.
Show all 18
- wp_delete_post()Trashes or deletes a post or page.
- wp_edit_posts_query()Runs the query to fetch the posts for listing on the edit posts page.
- wp_list_pages()Retrieves or displays a list of pages (or hierarchical post type items) in list (li) format.
- wp_nav_menu_item_post_type_meta_box()Displays a meta box for a post type menu item.
- wp_old_slug_redirect()Redirect old slugs to the correct permalink.
- wp_unique_post_slug()Computes a unique slug for the post, when given the desired slug and some post details.
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;}Changelog
Introduced in 3.0.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
About this page
- Parsed data
- Generated from the wordpress-develop 6.8.8 tag, from
src/wp-includes/post.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it. - Corrections
- Something wrong on this page? Report it and it gets fixed in the next regeneration.