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function is not described

wc_strtolower() WC 2.3

Make a string lowercase. Try to use mb_strtolower() when available.

No Hooks.

Return

String. Nothing.

Usage

wc_strtolower( $string );
$string(string) (required)
String to format.

Changelog

Since 2.3 Introduced.

Code of wc_strtolower() WC 5.3.0

<?php
function wc_strtolower( $string ) {
	return function_exists( 'mb_strtolower' ) ? mb_strtolower( $string ) : strtolower( $string );
}