/**
* Converts UTF-8 strings to codepoints array.<br>
* Invalid byte sequences will be replaced with 0xFFFD (replacement character)<br>
* @param $str (string) string to process.
* @param $isunicode (boolean) True when the documetn is in Unicode mode, false otherwise.
* @param $currentfont (array) Reference to current font array.
* @return array containing codepoints (UTF-8 characters values)
* @author Nicola Asuni
* @public static
*/
public static function UTF8StringToArray($str, $isunicode = true, &$currentfont)
{
if ($isunicode) {
// requires PCRE unicode support turned on
$chars = TcpdfStatic::pregSplit('//', 'u', $str, -1, PREG_SPLIT_NO_EMPTY);
$carr = array_map(array('self', 'uniord'), $chars);
} else {
$chars = str_split($str);
$carr = array_map('ord', $chars);
}
$currentfont['subsetchars'] += array_fill_keys($carr, true);
return $carr;
}
