WordPress at a glance
function is not described

is_rtl() WP 3.0.0

Determines whether the current locale is right-to-left (RTL).

For more information on this and similar theme functions, check out the Conditional Tags article in the Theme Developer Handbook.

No Hooks.

Return

true/false. Whether locale is RTL.

Usage

is_rtl();

Notes

  • Global. WP_Locale. $wp_locale

Changelog

Since 3.0.0 Introduced.

Code of is rtl: wp-includes/l10n.php WP 5.2.3

<?php
function is_rtl() {
	global $wp_locale;
	if ( ! ( $wp_locale instanceof WP_Locale ) ) {
		return false;
	}
	return $wp_locale->is_rtl();
}