/**
* Callback function for preg_replace_callback call in utf8_ucwords
*
* You don't need to call this yourself
*
* @param array of matches corresponding to a single word
* @return string with first char of the word in uppercase
* @see ucwords
* @see strtoupper
*/
public static function ucwords_callback($matches)
{
$leadingws = $matches[2];
$ucfirst = KHelperString::strtoupper($matches[3]);
$ucword = KHelperString::substr_replace(ltrim($matches[0]), $ucfirst, 0, 1);
return $leadingws . $ucword;
}
