- var_dump: documentation ( source)
- preg_match: documentation ( source)
<?php
$valuesId = 'Zielona Góra';
var_dump(preg_match("@^[0-9A-ZĄąĆćĘꣳÓ󯿏źŃńŚś\-\.\, ]{5,35}$@i", $valuesId));
var_dump(preg_match("@^[0-9A-ZĄąĆćĘꣳÓ󯿏źŃńŚś\-\.\, ]{5,35}$@iu", $valuesId));