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WordPress

create_initial_rest_routes()

Since
4.7.0
Source
wp-includes/rest-api.php:265
Registers default REST API routes.

Compatibility

WordPress
since 4.7.0
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.

Performance profile

How much work a call to create_initial_rest_routes() 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
Light

Touches nothing outside its own arguments.

Scaling
Scales with input

The body loops, so the work grows with how much data it finds.

Instructions
178–180

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 212.

Plugin surface
1 hook

Third-party callbacks on 'wp_rest_search_handlers' run inside this call, and their cost is not bounded by anything here.

Called by
0

Nothing in core calls this; the cost is only what you spend yourself.

What it touches

  • hookthird-party callbacksapply_filters()called directly

What one call costs · 1 distinct outcome

One number would be a lie: the work depends on which branch runs. These are every distinct cost create_initial_rest_routes() can have, taken from its control-flow graph on PHP 8.5.

WhenInstructionsCalls it makes
always178–180get_post_types(), ->register_routes(), ->register_routes(), ->register_routes(), get_taxonomies(), ->register_routes(), ->register_routes(), ->register_routes(), apply_filters(), ->register_routes(), ->register_routes(), ->register_routes(), ->register_routes(), ->register_routes(), ->register_routes(), ->register_routes(), ->register_routes(), ->register_routes(), ->register_routes(), ->register_routes(), ->register_routes(), ->register_routes(), ::WP_Site_Health(), ->register_routes(), ->register_routes(), ->register_routes(), ->register_routes(), ->register_routes(), ->register_routes(), ->register_routes(), ->register_routes(), ->register_routes(), ->register_routes()

Across PHP versions

Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 212 instructions, 178–180 executed per call, 10 branches. 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.

Hooks and filters fired · 1

One hook fires while create_initial_rest_routes() runs, in this order:

  1. apply_filters( wp_rest_search_handlers )filterline 342 (+77 into the body)

    Filters the search handlers to use in the REST search controller.

Uses · 36

Show all 36

Source code

function create_initial_rest_routes() {	foreach ( get_post_types( array( 'show_in_rest' => true ), 'objects' ) as $post_type ) {		$controller = $post_type->get_rest_controller(); 		if ( ! $controller ) {			continue;		} 		if ( ! $post_type->late_route_registration ) {			$controller->register_routes();		} 		$revisions_controller = $post_type->get_revisions_rest_controller();		if ( $revisions_controller ) {			$revisions_controller->register_routes();		} 		$autosaves_controller = $post_type->get_autosave_rest_controller();		if ( $autosaves_controller ) {			$autosaves_controller->register_routes();		} 		if ( $post_type->late_route_registration ) {			$controller->register_routes();		}	} 	// Post types.	$controller = new WP_REST_Post_Types_Controller();	$controller->register_routes(); 	// Post statuses.	$controller = new WP_REST_Post_Statuses_Controller();	$controller->register_routes(); 	// Taxonomies.	$controller = new WP_REST_Taxonomies_Controller();	$controller->register_routes(); 	// Terms.	foreach ( get_taxonomies( array( 'show_in_rest' => true ), 'object' ) as $taxonomy ) {		$controller = $taxonomy->get_rest_controller(); 		if ( ! $controller ) {			continue;		} 		$controller->register_routes();	} 	// Users.	$controller = new WP_REST_Users_Controller();	$controller->register_routes(); 	// Application Passwords	$controller = new WP_REST_Application_Passwords_Controller();	$controller->register_routes(); 	// Comments.	$controller = new WP_REST_Comments_Controller();	$controller->register_routes(); 	$search_handlers = array(		new WP_REST_Post_Search_Handler(),		new WP_REST_Term_Search_Handler(),		new WP_REST_Post_Format_Search_Handler(),	); 	/**	 * Filters the search handlers to use in the REST search controller.	 *	 * @since 5.0.0	 *	 * @param array $search_handlers List of search handlers to use in the controller. Each search	 *                               handler instance must extend the `WP_REST_Search_Handler` class.	 *                               Default is only a handler for posts.	 */	$search_handlers = apply_filters( 'wp_rest_search_handlers', $search_handlers ); 	$controller = new WP_REST_Search_Controller( $search_handlers );

Changelog

Introduced in 4.7.0. Unchanged from 6.7.7 through 7.1.0.

  1. 6.7.7
  2. 6.8.8
  3. 6.9.7
  4. 7.0.4
  5. 7.1.0

Signature, return type and hooks compared across 5 parsed releases.

About this page

Parsed data
Generated from the wordpress-develop 7.0.4 tag, from src/wp-includes/rest-api.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.
Corrections
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