<?php
$regex = "~[ˆ¶]|[^!-ÿ]~";
echo preg_match($regex,"abc") ? "True\n" : "False\n";
echo preg_match($regex,"'д€") ? "True\n" : "False\n";
echo preg_match($regex,"asд€!\$da:‰sdFf3Ff3") ? "True\n" : "False\n";