load_script_translations( string|false $file, string $handle, string $domain ): string|false

In this article

Loads the translation data for the given script handle and text domain.

Parameters

$filestring|falserequired
Path to the translation file to load. False if there isn’t one.
$handlestringrequired
Name of the script to register a translation domain to.
$domainstringrequired
The text domain.

Return

string|false The JSON-encoded translated strings for the given script handle and text domain.
False if there are none.

Source

		return false;
	}

	$translations = file_get_contents( $file );

	/**
	 * Filters script translations for the given file, script handle and text domain.
	 *
	 * @since 5.0.2
	 *
	 * @param string $translations JSON-encoded translation data.
	 * @param string $file         Path to the translation file that was loaded.
	 * @param string $handle       Name of the script to register a translation domain to.
	 * @param string $domain       The text domain.
	 */
	return apply_filters( 'load_script_translations', $translations, $file, $handle, $domain );
}

/**
 * Loads plugin and theme text domains just-in-time.
 *
 * When a textdomain is encountered for the first time, we try to load
 * the translation file from `wp-content/languages`, removing the need
 * to call load_plugin_textdomain() or load_theme_textdomain().
 *
 * @since 4.6.0
 * @access private
 *
 * @global MO[]                   $l10n_unloaded          An array of all text domains that have been unloaded again.
 * @global WP_Textdomain_Registry $wp_textdomain_registry WordPress Textdomain Registry.
 *
 * @param string $domain Text domain. Unique identifier for retrieving translated strings.
 * @return bool True when the textdomain is successfully loaded, false otherwise.
 */
function _load_textdomain_just_in_time( $domain ) {
	/** @var WP_Textdomain_Registry $wp_textdomain_registry */
	global $l10n_unloaded, $wp_textdomain_registry;

	$l10n_unloaded = (array) $l10n_unloaded;

	// Short-circuit if domain is 'default' which is reserved for core.
	if ( 'default' === $domain || isset( $l10n_unloaded[ $domain ] ) ) {
		return false;
	}

	if ( ! $wp_textdomain_registry->has( $domain ) ) {
		return false;
	}

Changelog

VersionDescription
5.0.2Introduced.

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