mint/app/fts/test.php

<?php
$pali_word_exp = "/^[āīūṅñṭḍṇḷṃṁŋĀĪŪṄÑṬḌṆḶṂṀŊabcdefghijklmnoprstuvyABCDEFGHIJKLMNOPRSTUVY-]+$/";

echo preg_match($pali_word_exp, 'asdasd');

?>