wp_font_library_render_page()
- Source
wp-includes/build/pages/font-library/page.php:120
Description
Call this function from add_menu_page or add_submenu_page.
Compatibility
- WordPress
- core
- PHP
- 7.4–8.6-dev
- 6.7.7
- 6.8.8
- 6.9.7
- 7.0.4
- 7.1.0
Present in 2 of the 5 tracked releases, and compiles on PHP 7.4 through 8.6-dev.
Performance profile
How much work a call to wp_font_library_render_page() 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
- Plugin surface
- 6 hooks
- Called by
- 1
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. The body compiles to 221.
Third-party callbacks on 'font-library_init', 'font-library_boot_dependencies', 'admin_head-{$hook_suffix}' run inside this call, and their cost is not bounded by anything here.
1 place in core call this, so the cost is paid more often than your own code shows.
What it touches
- hookthird-party callbacks
do_action()called directly
Further down the call graph this can also reach option, cache, serialize, query and transient. Those are the worst case, several calls deep and usually down an error path, not what a normal call pays.
What one call costs · 1 distinct outcome
One number would be a lie: the work depends on which branch runs. These are every distinct cost wp_font_library_render_page() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
| always | 6 | wp_style_is() |
Across PHP versions
| PHP | Compiled | Executed | Branches | Notes |
|---|---|---|---|---|
| 8.6-dev | 221 | 6 | 10 | |
| 8.5 | 221 | 6 | 10 | |
| 8.4 | 221 | 6 | 10 | 5 more instructions than PHP 8.3 |
| 8.3 | 216 | 6 | 10 | |
| 8.2 | 216 | 6 | 10 | |
| 8.1 | 216 | 6 | 10 | |
| 7.4 | 216 | 6 | 10 |
An instruction is not a fixed amount of time, so a matching count is not necessarily the same speed; what it rules out is a difference in the work itself.
Hooks and filters fired · 6
6 hooks fire while wp_font_library_render_page() runs, in this order:
- do_action( font-library_init )actionline 141 (+21 into the body)
- apply_filters( font-library_boot_dependencies )filterline 225 (+105 into the body)
Filters the boot script-module dependencies for the font-library page.
- do_action( admin_head-{$hook_suffix} )actionline 274 (+154 into the body)
Fires in head section for a specific admin page.
- do_action( admin_head )actionline 277 (+157 into the body)
Fires in head section for all admin pages.
- do_action( admin_footer )actionline 287 (+167 into the body)
Prints scripts or data before the default footer scripts.
- do_action( admin_footer-{$hook_suffix} )actionline 297 (+177 into the body)
Prints scripts or data after the default footer scripts.
Uses · 35
- set_current_screen()Set the current screen object
- remove_action()Removes a callback function from an action hook.
- wp_scripts()Initializes $wp_scripts if it has not been set.
- wp_dequeue_script()Removes a previously enqueued script.
- wp_styles()Initializes $wp_styles if it has not been set.
- wp_dequeue_style()Removes a previously enqueued CSS stylesheet.
- do_action()Calls the callback functions that have been added to an action hook.
- wp_enqueue_command_palette_assets()Enqueues the assets required for the Command Palette.
- wp_font_library_preload_data()Preload REST API data for the font-library page.
- wp_get_font_library_menu_items()Get all registered menu items for the font-library page.
- wp_get_font_library_routes()Get all registered routes for the font-library page.
- wp_register_script()Registers a new script.
Show all 35
- wp_add_inline_script()Adds extra code to a registered script.
- wp_json_encode()Encodes a variable into JSON, with some confidence checks.
- esc_url()Checks and cleans a URL.
- admin_url()Retrieves the URL to the admin area for the current site.
- wp_style_is()Checks whether a CSS stylesheet has been added to the queue.
- wp_register_style()Registers a CSS stylesheet.
- apply_filters()Calls the callback functions that have been added to a filter hook.
- wp_register_script_module()Registers the script module if no script module with that script module identifier has already been registered.
- wp_enqueue_script()Enqueues a script.
- wp_enqueue_script_module()Marks the script module to be enqueued in the page.
- wp_enqueue_style()Enqueues a CSS stylesheet.
- language_attributes()Displays the language attributes for the 'html' tag.
- bloginfo()Displays information about the current site.
- esc_html()Escaping for HTML blocks.
- get_admin_page_title()Gets the title of the current admin page.
- print_admin_styles()Prints the styles queue in the HTML head on admin pages.
- print_head_scripts()Prints the script queue in the HTML head on admin pages.
- wp_script_modules()Retrieves the main WP_Script_Modules instance.
- print_footer_scripts()Prints the scripts that were queued for the footer or too late for the HTML head.
- wp_script_modules()::print_import_map()
- wp_script_modules()::print_enqueued_script_modules()
- wp_script_modules()::print_script_module_preloads()
- wp_script_modules()::print_script_module_data()
Used by · 1
- wp_font_library_intercept_render()Intercept admin_init to render the page early.
Source code
function wp_font_library_render_page() { // Load build constants $build_constants = require __DIR__ . '/../../constants.php'; // Set current screen set_current_screen(); // Remove unwanted deprecated handler remove_action( 'admin_head', 'wp_admin_bar_header' ); // Remove unwanted scripts and styles that were enqueued during `admin_init` foreach ( wp_scripts()->queue as $script ) { wp_dequeue_script( $script ); } foreach ( wp_styles()->queue as $style ) { wp_dequeue_style( $style ); } /** * Fires when the font-library page is initialized so extensions can register routes and menu items. */ do_action( 'font-library_init' ); // Enqueue command palette assets for boot-based pages if ( function_exists( 'wp_enqueue_command_palette_assets' ) ) { wp_enqueue_command_palette_assets(); } // Preload REST API data wp_font_library_preload_data(); // Get all registered routes and menu items $menu_items = wp_get_font_library_menu_items(); $routes = wp_get_font_library_routes(); // Get boot module asset file for dependencies $asset_file = ABSPATH . WPINC . '/js/dist/script-modules/boot/index.min.asset.php'; if ( file_exists( $asset_file ) ) { $asset = require $asset_file; // This script serves two purposes: // 1. It ensures all the globals that are made available to the modules are loaded. // 2. It initializes the boot module as an inline script. wp_register_script( 'font-library-prerequisites', '', $asset['dependencies'], $asset['version'], true ); // Add inline script to initialize the app $init_modules = []; wp_add_inline_script( 'font-library-prerequisites', sprintf( 'import("@wordpress/boot").then(mod => mod.init({mountId: "%s", menuItems: %s, routes: %s, initModules: %s, dashboardLink: "%s"}));', 'font-library-app', wp_json_encode( $menu_items, JSON_HEX_TAG | JSON_UNESCAPED_SLASHES ), wp_json_encode( $routes, JSON_HEX_TAG | JSON_UNESCAPED_SLASHES ), wp_json_encode( $init_modules, JSON_HEX_TAG | JSON_UNESCAPED_SLASHES ), esc_url( admin_url( '/' ) ) ) ); // Register prerequisites style by filtering script dependencies to find registered styles $style_dependencies = array_filter( $asset['dependencies'], function ( $handle ) { return wp_style_is( $handle, 'registered' ); } ); wp_register_style( 'font-library-prerequisites', false, $style_dependencies, $asset['version'] ); // Build dependencies for font-library module $boot_dependencies = array( array( 'import' => 'static', 'id' => '@wordpress/boot', ), ); // Add init modules as static dependencies // No init modules configured // Add all registered routes as dependenciesChangelog
Unchanged from 7.0.4 through 7.1.0.
Signature, return type and hooks compared across 2 parsed releases.
About this page
- Parsed data
- Generated from the wordpress-develop 7.1.0 tag, from
src/wp-includes/build/pages/font-library/page.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.