wp_default_styles( WP_Styles $styles )
- Since
- 2.6.0
- Source
wp-includes/script-loader.php:1546
Description
Nothing is returned, because the $styles parameter is passed by reference.
Meaning that whatever object is passed will be updated without having to reassign the variable that was passed back to the same value. This saves memory.
Adding default styles is not the only task, it also assigns the base_url property, the default version, and text direction for the object.
Compatibility
- WordPress
- since 2.6.0
- 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
$stylesWP_Styles
Performance profile
How much work a call to wp_default_styles() 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
- Heavy
- Scaling
- Scales with input
- Instructions
- 459–493
- Plugin surface
- None
- Called by
- 0
Reads stored settings via get_option(), cached per request but not free on a cold cache.
The body loops, so the work grows with what you pass in.
Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 559.
Nothing here hands control to plugin code.
Nothing in core calls this; the cost is only what you spend yourself.
What it touches
- optionoption read or write
get_option()one call below wp_default_styles() - hookthird-party callbacks
apply_filters()one call below wp_default_styles()
Further down the call graph this can also reach 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 · 4 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost wp_default_styles() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
defined('SCRIPT_DEBUG') && !defined('WP_CONTENT_URL') && !function_exists() && $font_family === "off" | 459–471 | site_url(), get_bloginfo(), function_exists(), _x(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add_data(), _x(), ->add(), ->add(), ->add_data(), ->add(), ->add_data(), ->add(), ->add(), ->add(), wp_theme_has_theme_json(), current_theme_supports(), ->add() |
defined('SCRIPT_DEBUG') && !defined('WP_CONTENT_URL') && !function_exists() && $font_family !== "off" | 464–476 | site_url(), get_bloginfo(), function_exists(), _x(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add_data(), _x(), urlencode(), ->add(), ->add(), ->add_data(), ->add(), ->add_data(), ->add(), ->add(), ->add(), wp_theme_has_theme_json(), current_theme_supports(), ->add() |
defined('SCRIPT_DEBUG') && !defined('WP_CONTENT_URL') && !function_exists() && $subset !== "cyrillic" && $font_family === "off" | 475–488 | site_url(), get_bloginfo(), function_exists(), _x(), _x(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add_data(), _x(), ->add(), ->add(), ->add_data(), ->add(), ->add_data(), ->add(), ->add(), ->add(), wp_theme_has_theme_json(), current_theme_supports(), ->add() |
defined('SCRIPT_DEBUG') && !defined('WP_CONTENT_URL') && !function_exists() && $subset !== "cyrillic" && $font_family !== "off" | 480–493 | site_url(), get_bloginfo(), function_exists(), _x(), _x(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add(), ->add_data(), _x(), urlencode(), ->add(), ->add(), ->add_data(), ->add(), ->add_data(), ->add(), ->add(), ->add(), wp_theme_has_theme_json(), current_theme_supports(), ->add() |
This body has more branch combinations than are worth enumerating, so the table covers the outcomes found first rather than every one that exists.
Across PHP versions
| PHP | Compiled | Executed | Branches | Notes |
|---|---|---|---|---|
| 8.6-dev | 559 | 459–493 | 22 | |
| 8.5 | 559 | 459–493 | 22 | |
| 8.4 | 559 | 459–493 | 22 | 3 fewer instructions than PHP 8.3 |
| 8.3 | 562 | 459–493 | 22 | |
| 8.2 | 562 | 459–493 | 22 | |
| 8.1 | 562 | 459–493 | 22 | 1 fewer instruction than PHP 7.4 |
| 7.4 | 563 | 459–493 | 22 |
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 · 8
- site_url()Retrieves the URL for the current site where WordPress application files (e.g. wp-blog-header.php or the wp-admin/ folder) are accessible.
- wp_guess_url()Guesses the URL for the site.
- get_bloginfo()Retrieves information about the current site.
- is_rtl()Determines whether the current locale is right-to-left (RTL).
- _x()Retrieves translated string with gettext context.
- wp_theme_has_theme_json()Checks whether a theme or its parent has a theme.json file.
- current_theme_supports()Checks a theme's support for a given feature.
- wp_should_load_separate_core_block_assets()Checks whether separate styles should be loaded for core blocks.
Source code
function wp_default_styles( $styles ) { global $editor_styles; /* * Include an unmodified $wp_version. * * Note: wp_get_wp_version() is not used here, as this file can be included * via wp-admin/load-scripts.php or wp-admin/load-styles.php, in which case * wp-includes/functions.php is not loaded. */ require ABSPATH . WPINC . '/version.php'; if ( ! defined( 'SCRIPT_DEBUG' ) ) { /* * Note: str_contains() is not used here, as this file can be included * via wp-admin/load-scripts.php or wp-admin/load-styles.php, in which case * the polyfills from wp-includes/compat.php are not loaded. */ define( 'SCRIPT_DEBUG', false !== strpos( $wp_version, '-src' ) ); } $guessurl = site_url(); if ( ! $guessurl ) { $guessurl = wp_guess_url(); } $styles->base_url = $guessurl; $styles->content_url = defined( 'WP_CONTENT_URL' ) ? WP_CONTENT_URL : ''; $styles->default_version = get_bloginfo( 'version' ); $styles->text_direction = function_exists( 'is_rtl' ) && is_rtl() ? 'rtl' : 'ltr'; $styles->default_dirs = array( '/wp-admin/', '/wp-includes/css/' ); // Open Sans is no longer used by core, but may be relied upon by themes and plugins. $open_sans_font_url = ''; /* * translators: If there are characters in your language that are not supported * by Open Sans, translate this to 'off'. Do not translate into your own language. */ if ( 'off' !== _x( 'on', 'Open Sans font: on or off' ) ) { $subsets = 'latin,latin-ext'; /* * translators: To add an additional Open Sans character subset specific to your language, * translate this to 'greek', 'cyrillic' or 'vietnamese'. Do not translate into your own language. */ $subset = _x( 'no-subset', 'Open Sans font: add new subset (greek, cyrillic, vietnamese)' ); if ( 'cyrillic' === $subset ) { $subsets .= ',cyrillic,cyrillic-ext'; } elseif ( 'greek' === $subset ) { $subsets .= ',greek,greek-ext'; } elseif ( 'vietnamese' === $subset ) { $subsets .= ',vietnamese'; } // Hotlink Open Sans, for now. $open_sans_font_url = "https://fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,300,400,600&subset=$subsets&display=fallback"; } // Register a stylesheet for the selected admin color scheme. $styles->add( 'colors', true, array( 'wp-admin', 'buttons' ) ); $suffix = SCRIPT_DEBUG ? '' : '.min'; // Admin CSS. $styles->add( 'common', "/wp-admin/css/common$suffix.css" ); $styles->add( 'forms', "/wp-admin/css/forms$suffix.css" ); $styles->add( 'admin-menu', "/wp-admin/css/admin-menu$suffix.css" ); $styles->add( 'dashboard', "/wp-admin/css/dashboard$suffix.css" ); $styles->add( 'list-tables', "/wp-admin/css/list-tables$suffix.css" ); $styles->add( 'edit', "/wp-admin/css/edit$suffix.css" ); $styles->add( 'revisions', "/wp-admin/css/revisions$suffix.css" ); $styles->add( 'media', "/wp-admin/css/media$suffix.css" ); $styles->add( 'themes', "/wp-admin/css/themes$suffix.css" ); $styles->add( 'about', "/wp-admin/css/about$suffix.css" ); $styles->add( 'nav-menus', "/wp-admin/css/nav-menus$suffix.css" ); $styles->add( 'widgets', "/wp-admin/css/widgets$suffix.css", array( 'wp-pointer' ) ); $styles->add( 'site-icon', "/wp-admin/css/site-icon$suffix.css" );Changelog
Introduced in 2.6.0. 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 6.9.7 tag, from
src/wp-includes/script-loader.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.