- preg_last_error: documentation ( source)
- str_replace: documentation ( source)
- preg_replace: documentation ( source)
<?php
$result = "°Freenew°\x90ɮ\xC2\xA0";
echo preg_replace('#[\x{0000}-\x{001F}\x{007F}-\x{00A0}]#u', '', $result);
echo preg_last_error();
echo str_replace('\x{00A0}', 'aaa', $result);