wp_load_translations_early() WP 3.4.0

Attempt an early load of translations.

Used for errors encountered during the initial loading process, before the locale has been properly detected and loaded.

Designed for unusual load sequences (like setup-config.php) or for when the script will then terminate with an error, otherwise there is a risk that a file can be double-included.

No Hooks.

Return

null. Nothing.

Usage

wp_load_translations_early();

Notes

• Global. WP_Locale. $wp_locale WordPress date and time locale object.

Changelog

Code of wp_load_translations_early() wp load translations early ^{WP 5.7.1}

<?php
function wp_load_translations_early() {
	global $wp_locale;

	static $loaded = false;
	if ( $loaded ) {
		return;
	}
	$loaded = true;

	if ( function_exists( 'did_action' ) && did_action( 'init' ) ) {
		return;
	}

	// We need $wp_local_package.
	require ABSPATH . WPINC . '/version.php';

	// Translation and localization.
	require_once ABSPATH . WPINC . '/pomo/mo.php';
	require_once ABSPATH . WPINC . '/l10n.php';
	require_once ABSPATH . WPINC . '/class-wp-locale.php';
	require_once ABSPATH . WPINC . '/class-wp-locale-switcher.php';

	// General libraries.
	require_once ABSPATH . WPINC . '/plugin.php';

	$locales   = array();
	$locations = array();

	while ( true ) {
		if ( defined( 'WPLANG' ) ) {
			if ( '' === WPLANG ) {
				break;
			}
			$locales[] = WPLANG;
		}

		if ( isset( $wp_local_package ) ) {
			$locales[] = $wp_local_package;
		}

		if ( ! $locales ) {
			break;
		}

		if ( defined( 'WP_LANG_DIR' ) && @is_dir( WP_LANG_DIR ) ) {
			$locations[] = WP_LANG_DIR;
		}

		if ( defined( 'WP_CONTENT_DIR' ) && @is_dir( WP_CONTENT_DIR . '/languages' ) ) {
			$locations[] = WP_CONTENT_DIR . '/languages';
		}

		if ( @is_dir( ABSPATH . 'wp-content/languages' ) ) {
			$locations[] = ABSPATH . 'wp-content/languages';
		}

		if ( @is_dir( ABSPATH . WPINC . '/languages' ) ) {
			$locations[] = ABSPATH . WPINC . '/languages';
		}

		if ( ! $locations ) {
			break;
		}

		$locations = array_unique( $locations );

		foreach ( $locales as $locale ) {
			foreach ( $locations as $location ) {
				if ( file_exists( $location . '/' . $locale . '.mo' ) ) {
					load_textdomain( 'default', $location . '/' . $locale . '.mo' );
					if ( defined( 'WP_SETUP_CONFIG' ) && file_exists( $location . '/admin-' . $locale . '.mo' ) ) {
						load_textdomain( 'default', $location . '/admin-' . $locale . '.mo' );
					}
					break 2;
				}
			}
		}

		break;
	}

	$wp_locale = new WP_Locale();
}