Online PHP editor | refs for EY06F

@ 2016-06-02T23:47:14Z

<?php
$str = "up vote
-1
down vote
favorite
What is the best way to filter characters like this:

็็็็็็็็็็็็็็็็็็ ็็็็็็็";
echo preg_replace('/[\x00-\x1F\x80-\xFF]/', '', $str);