<?php

$a = "<adress>Náchodská 272 \x0B,Dolní Radechová, 54911</adress>";


$b = str_replace("\v", '', $a);

$c = str_replace("\x0B", '', $a);

$d = str_replace( chr(11) , '', $a);

echo strlen($a) . "\n" . strlen($b) . "\n" . strlen($c) . "\n" . strlen($d);

59
58
58
58