get_stylesheet_directory_uri(): string
- Since
- 1.5.0
- Source
wp-includes/theme.php:225
Compatibility
- WordPress
- since 1.5.0
- 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.
Return value
string- URI to active theme's stylesheet directory.
Performance profile
How much work a call to get_stylesheet_directory_uri() 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
- Moderate
- Scaling
- Constant
- Instructions
- 21
- Plugin surface
- 1 hook
- Called by
- 20
Reads stored settings via get_option(), cached per request but not free on a cold cache.
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 21.
Third-party callbacks on 'stylesheet_directory_uri' run inside this call, and their cost is not bounded by anything here.
20 places in core call this, so the cost is paid more often than your own code shows.
What it touches
- hookthird-party callbacks
apply_filters()called directly - optionoption read or write
get_option()one call below get_stylesheet_directory_uri()
Further down the call graph this can also reach cache, serialize, transient and query. 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 get_stylesheet_directory_uri() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
| always | 21 | get_stylesheet(), rawurlencode(), get_theme_root_uri(), apply_filters() |
Across PHP versions
| PHP | Compiled | Executed | Branches | Notes |
|---|---|---|---|---|
| 8.6-dev | 21 | 21 | 0 | |
| 8.5 | 21 | 21 | 0 | |
| 8.4 | 21 | 21 | 0 | 4 fewer instructions than PHP 8.3 |
| 8.3 | 25 | 25 | 0 | |
| 8.2 | 25 | 25 | 0 | |
| 8.1 | 25 | 25 | 0 | |
| 7.4 | 25 | 25 | 0 |
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 get_stylesheet_directory_uri() runs, in this order:
- apply_filters( stylesheet_directory_uri )filterline 239 (+14 into the body)
Filters the stylesheet directory URI.
Uses · 3
- get_stylesheet()Retrieves name of the current stylesheet.
- get_theme_root_uri()Retrieves URI for themes directory.
- apply_filters()Calls the callback functions that have been added to a filter hook.
Used by · 20
- Custom_Image_Header::get_default_header_images()Gets the details of default header images if defined.
- Custom_Image_Header::process_default_headers()Processes the default headers.
- Custom_Image_Header::reset_header_image()Resets a header image to the default image for the theme.
- Custom_Image_Header::step_1()Displays first step of custom header image page.
- WP_Customize_Manager::register_controls()Registers some default controls.
- WP_REST_Themes_Controller::prepare_item_for_response()Prepares a single theme output for response.
- WP_URL_Pattern_Prefixer::get_default_contexts()Returns the default contexts used by the class.
- _get_random_header_data()Gets random header image data from registered images in theme.
- get_bloginfo()Retrieves information about the current site.
- get_custom_header()Gets the header image data.
- get_editor_stylesheets()Retrieves any registered editor stylesheet URLs.
- get_locale_stylesheet_uri()Retrieves the localized stylesheet URI.
Show all 20
- get_stylesheet_uri()Retrieves stylesheet URI for the active theme.
- get_theme_file_uri()Retrieves the URL of a file in the theme.
- get_theme_mod()Retrieves theme modification value for the active theme.
- twentyfifteen_setup()Sets up theme defaults and registers support for various WordPress features.
- twentyfourteen_setup()Twenty Fourteen setup.
- twentyseventeen_setup()Sets up theme defaults and registers support for various WordPress features.
- twentysixteen_setup()Sets up theme defaults and registers support for various WordPress features.
- twentythirteen_setup()Twenty Thirteen setup.
Source code
function get_stylesheet_directory_uri() { $stylesheet = str_replace( '%2F', '/', rawurlencode( get_stylesheet() ) ); $theme_root_uri = get_theme_root_uri( $stylesheet ); $stylesheet_dir_uri = "$theme_root_uri/$stylesheet"; /** * Filters the stylesheet directory URI. * * @since 1.5.0 * * @param string $stylesheet_dir_uri Stylesheet directory URI. * @param string $stylesheet Name of the activated theme's directory. * @param string $theme_root_uri Themes root URI. */ return apply_filters( 'stylesheet_directory_uri', $stylesheet_dir_uri, $stylesheet, $theme_root_uri );}Changelog
Introduced in 1.5.0. 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 7.1.0 tag, from
src/wp-includes/theme.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.