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WordPress

WP_Theme_JSON_Resolver::translate( array $theme_json, string $domain = 'default' ): array

Since
5.8.0
Source
wp-includes/class-wp-theme-json-resolver.php:144
Given a theme.json structure modifies it in place to update certain values by its translated strings according to the language set by the user.

Compatibility

WordPress
since 5.8.0
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_jsonarray
The theme.json to translate.
$domainstringoptional
Text domain. Unique identifier for retrieving translated strings.
Default 'default'.Default: 'default'

Return value

array
Returns the modified $theme_json_structure.

Performance profile

How much work a call to WP_Theme_JSON_Resolver::translate() 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

Touches nothing outside its own arguments.

Scaling
Constant

No loop in the body: the same number of instructions runs whatever you pass in.

Instructions
13–21

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 21.

Plugin surface
None

Nothing here hands control to plugin code.

Called by
0

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

What one call costs · 2 distinct outcomes

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

WhenInstructionsCalls it makes
always13translate_settings_using_i18n_schema()
always20–21wp_json_file_decode(), translate_settings_using_i18n_schema()

Across PHP versions

Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 21 instructions, 13–21 executed per call, 2 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.

Uses · 2

Source code

View on Trac View on GitHub 

	protected static function translate( $theme_json, $domain = 'default' ) {		if ( null === static::$i18n_schema ) {			$i18n_schema         = wp_json_file_decode( __DIR__ . '/theme-i18n.json' );			static::$i18n_schema = $i18n_schema ?? array();		} 		return translate_settings_using_i18n_schema( static::$i18n_schema, $theme_json, $domain );	}

Changelog

Introduced in 5.8.0. 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 7.1.0 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
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