/**
* Makes the first character of every word in a UTF-8 string uppercase.
* This is a UTF8-aware version of [ucwords](http://php.net/ucwords).
*
* $str = UTF8::wpucwords($str);
*
* @author Harry Fuecks <*****@*****.**>
* @param string $str mixed case string
* @return string
*/
public static function wpucwords($str)
{
if (UTF8::is_ascii($str)) {
return ucwords($str);
}
return preg_replace_callback('/(?<=^|[\\x0c\\x09\\x0b\\x0a\\x0d\\x20])[^\\x0c\\x09\\x0b\\x0a\\x0d\\x20]/u', function ($matches) {
return UTF8::wpstrtoupper($matches[0]);
}, $str);
}
