<?php
// define( 'WP_ADMIN', true );
// Most likely front-end scenario.
function is_admin() {
if ( isset( $GLOBALS['current_screen'] ) ) {
return $GLOBALS['current_screen']->in_admin();
} elseif ( defined( 'WP_ADMIN' ) ) {
return WP_ADMIN;
}
return false;
}
function wp_is_json_request() {
if ( isset( $_SERVER['HTTP_ACCEPT'] ) && wp_is_json_media_type( $_SERVER['HTTP_ACCEPT'] ) ) {
return true;
}
if ( isset( $_SERVER['CONTENT_TYPE'] ) && wp_is_json_media_type( $_SERVER['CONTENT_TYPE'] ) ) {
return true;
}
return false;
}
function is_multisite() {
if ( defined( 'MULTISITE' ) ) {
return MULTISITE;
}
if ( defined( 'SUBDOMAIN_INSTALL' ) || defined( 'VHOST' ) || defined( 'SUNRISE' ) ) {
return true;
}
return false;
}
function get_option( $what ) {
switch ( $what ) :
case 'WPLANG':
return 'en_US';
endswitch;
return false;
}
function get_locale() {
global $locale, $wp_local_package;
if ( isset( $locale ) ) {
/** This filter is documented in wp-includes/l10n.php */
return apply_filters( 'locale', $locale );
}
if ( isset( $wp_local_package ) ) {
$locale = $wp_local_package;
}
// WPLANG was defined in wp-config.
if ( defined( 'WPLANG' ) ) {
$locale = WPLANG;
}
// If multisite, check options.
if ( is_multisite() ) {
// Don't check blog option when installing.
if ( wp_installing() ) {
$ms_locale = get_site_option( 'WPLANG' );
} else {
$ms_locale = get_option( 'WPLANG' );
if ( false === $ms_locale ) {
$ms_locale = get_site_option( 'WPLANG' );
}
}
if ( false !== $ms_locale ) {
$locale = $ms_locale;
}
} else {
$db_locale = get_option( 'WPLANG' );
if ( false !== $db_locale ) {
$locale = $db_locale;
}
}
if ( empty( $locale ) ) {
$locale = 'en_US';
}
/**
* Filters the locale ID of the WordPress installation.
*
* @since 1.5.0
*
* @param string $locale The locale ID.
*/
return apply_filters( 'locale', $locale );
}
function get_user_locale( $user = 0 ) {
$user_object = false;
if ( 0 === $user && function_exists( 'wp_get_current_user' ) ) {
$user_object = wp_get_current_user();
} elseif ( $user instanceof WP_User ) {
$user_object = $user;
} elseif ( $user && is_numeric( $user ) ) {
$user_object = get_user_by( 'id', $user );
}
if ( ! $user_object ) {
return get_locale();
}
$locale = $user_object->locale;
return $locale ? $locale : get_locale();
}
function apply_filters( $a, $b ) {
return $b;
}
function sanitize_locale_name( $a ) {
// Limit to A-Z, a-z, 0-9, '_', '-'.
$sanitized = preg_replace( '/[^A-Za-z0-9_-]/', '', $locale_name );
/**
* Filters a sanitized locale name string.
*
* @since 6.2.1
*
* @param string $sanitized The sanitized locale name.
* @param string $locale_name The locale name before sanitization.
*/
return apply_filters( 'sanitize_locale_name', $sanitized, $locale_name );
}
function determine_locale_actual() {
/**
* Filters the locale for the current request prior to the default determination process.
*
* Using this filter allows to override the default logic, effectively short-circuiting the function.
*
* @since 5.0.0
*
* @param string|null $locale The locale to return and short-circuit. Default null.
*/
$determined_locale = apply_filters( 'pre_determine_locale', null );
if ( $determined_locale && is_string( $determined_locale ) ) {
return $determined_locale;
}
if (
isset( $GLOBALS['pagenow'] ) && 'wp-login.php' === $GLOBALS['pagenow'] &&
( ! empty( $_GET['wp_lang'] ) || ! empty( $_COOKIE['wp_lang'] ) )
) {
if ( ! empty( $_GET['wp_lang'] ) ) {
$determined_locale = sanitize_locale_name( $_GET['wp_lang'] );
} else {
$determined_locale = sanitize_locale_name( $_COOKIE['wp_lang'] );
}
} elseif (
is_admin() ||
( isset( $_GET['_locale'] ) && 'user' === $_GET['_locale'] && wp_is_json_request() )
) {
$determined_locale = get_user_locale();
}
if ( ! $determined_locale ) {
$determined_locale = get_locale();
}
/**
* Filters the locale for the current request.
*
* @since 5.0.0
*
* @param string $locale The locale.
*/
return apply_filters( 'determine_locale', $determined_locale );
}
function determine_locale_proposed() {
/**
* Filters the locale for the current request prior to the default determination process.
*
* Using this filter allows to override the default logic, effectively short-circuiting the function.
*
* @since 5.0.0
*
* @param string|null $locale The locale to return and short-circuit. Default null.
*/
$determined_locale = apply_filters( 'pre_determine_locale', null );
if ( $determined_locale && is_string( $determined_locale ) ) {
return $determined_locale;
}
if (
is_admin()
|| ( isset( $_GET['_locale'] ) && 'user' === $_GET['_locale'] && wp_is_json_request() )
) {
$determined_locale = get_user_locale();
} else {
$determined_locale = get_locale();
}
if ( isset( $GLOBALS['pagenow'] ) && 'wp-login.php' === $GLOBALS['pagenow'] ) {
if ( ! empty( $_GET['wp_lang'] ) ) {
$determined_locale = sanitize_locale_name( $_GET['wp_lang'] ) ?: $determined_locale;
} elseif ( ! empty( $_COOKIE['wp_lang'] ) ) {
$determined_locale = sanitize_locale_name( $_COOKIE['wp_lang'] ) ?: $determined_locale;
}
}
/**
* Filters the locale for the current request.
*
* @since 5.0.0
*
* @param string $locale The locale.
*/
return apply_filters( 'determine_locale', $determined_locale );
}
determine_locale_actual();
determine_locale_proposed();
$its = 1e5;
$t = hrtime(true);
for ( $i = 0; $i++ < $its; )
determine_locale_actual();
echo 'current: ', $old = ( hrtime(true)-$t ) / 1e9, "s\n";
$t = hrtime(true);
for ( $i = 0; $i++ < $its; )
determine_locale_proposed();
echo 'proposed: ', $new = ( hrtime(true)-$t ) / 1e9, "s\n\n";
printf( 'Proposed is %sx faster', number_format( $old / $new, 2 ) );
preferences:
36.59 ms | 409 KiB | 5 Q