WP_Theme_JSON_Resolver::get_resolved_theme_uris( WP_Theme_JSON $theme_json ): array
- Since
- 6.6.0, 6.7.0
- Source
wp-includes/class-wp-theme-json-resolver.php:848
_link object in REST API responses.Compatibility
- WordPress
- since 6.7.0
- 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.
Parameters
$theme_jsonWP_Theme_JSON- A theme json instance.
Return value
array- An array of resolved paths.
Performance profile
How much work a call to WP_Theme_JSON_Resolver::get_resolved_theme_uris() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.
- Cost class
- Light
- Scaling
- Scales with input
- Instructions
- 5–52
- Plugin surface
- None
- Called by
- 4
Touches nothing outside its own arguments.
The body loops, so the work grows with what you pass in.
Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 94.
Nothing here hands control to plugin code.
4 places in core call this, so the cost is paid more often than your own code shows.
What it touches
- hookthird-party callbacks
apply_filters()one call below WP_Theme_JSON_Resolver::get_resolved_theme_uris()
Further down the call graph this can also reach option, query, cache, serialize and transient. Those are the worst case, several calls deep and usually down an error path, not what a normal call pays.
What one call costs · 3 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost WP_Theme_JSON_Resolver::get_resolved_theme_uris() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
!($theme_json instanceof) | 5 | none |
$theme_json instanceof | 19–29 | ->get_raw_data() |
$theme_json instanceof && isset($background_image_url) && is_string($background_image_url) && $background_image_url | 43–52 | ->get_raw_data(), wp_check_filetype(), get_theme_file_uri(), sanitize_url() |
Across PHP versions
| PHP | Compiled | Executed | Branches | Notes |
|---|---|---|---|---|
| 8.6-dev | 94 | 5–52 | 13 | |
| 8.5 | 94 | 5–52 | 13 | |
| 8.4 | 94 | 5–52 | 13 | 13 fewer instructions than PHP 8.3 |
| 8.3 | 107 | 5–59 | 13 | |
| 8.2 | 107 | 5–59 | 13 | |
| 8.1 | 107 | 5–59 | 13 | 1 fewer instruction than PHP 7.4 |
| 7.4 | 108 | 5–60 | 13 |
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 · 4
- str_starts_with()Polyfill for `str_starts_with()` function added in PHP 8.0.
- wp_check_filetype()Retrieves the file type from the file name.
- sanitize_url()Sanitizes a URL for database or redirect usage.
- get_theme_file_uri()Retrieves the URL of a file in the theme.
Used by · 4
- WP_REST_Global_Styles_Controller::get_theme_item()Returns the given theme global styles config.
- WP_REST_Global_Styles_Controller::get_theme_items()Returns the given theme global styles variations.
- WP_REST_Global_Styles_Controller::prepare_item_for_response()Prepare a global styles config output for response.
- WP_REST_Global_Styles_Revisions_Controller::prepare_item_for_response()Prepares the revision for the REST response.
Source code
public static function get_resolved_theme_uris( $theme_json ) { $resolved_theme_uris = array(); if ( ! $theme_json instanceof WP_Theme_JSON ) { return $resolved_theme_uris; } $theme_json_data = $theme_json->get_raw_data(); /* * The same file convention when registering web fonts. * See: WP_Font_Face_Resolver::to_theme_file_uri. */ $placeholder = 'file:./'; // Top level styles. $background_image_url = $theme_json_data['styles']['background']['backgroundImage']['url'] ?? null; if ( isset( $background_image_url ) && is_string( $background_image_url ) && // Skip if the src doesn't start with the placeholder, as there's nothing to replace. str_starts_with( $background_image_url, $placeholder ) ) { $file_type = wp_check_filetype( $background_image_url ); $src_url = str_replace( $placeholder, '', $background_image_url ); $resolved_theme_uri = array( 'name' => $background_image_url, 'href' => sanitize_url( get_theme_file_uri( $src_url ) ), 'target' => 'styles.background.backgroundImage.url', ); if ( isset( $file_type['type'] ) ) { $resolved_theme_uri['type'] = $file_type['type']; } $resolved_theme_uris[] = $resolved_theme_uri; } // Block styles. if ( ! empty( $theme_json_data['styles']['blocks'] ) ) { foreach ( $theme_json_data['styles']['blocks'] as $block_name => $block_styles ) { if ( ! isset( $block_styles['background']['backgroundImage']['url'] ) ) { continue; } $background_image_url = $block_styles['background']['backgroundImage']['url']; if ( is_string( $background_image_url ) && // Skip if the src doesn't start with the placeholder, as there's nothing to replace. str_starts_with( $background_image_url, $placeholder ) ) { $file_type = wp_check_filetype( $background_image_url ); $src_url = str_replace( $placeholder, '', $background_image_url ); $resolved_theme_uri = array( 'name' => $background_image_url, 'href' => sanitize_url( get_theme_file_uri( $src_url ) ), 'target' => "styles.blocks.{$block_name}.background.backgroundImage.url", ); if ( isset( $file_type['type'] ) ) { $resolved_theme_uri['type'] = $file_type['type']; } $resolved_theme_uris[] = $resolved_theme_uri; } } } return $resolved_theme_uris; }Changelog
Introduced in 6.6.0. 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 7.1.0 tag, from
src/wp-includes/class-wp-theme-json-resolver.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.