<?php
echo preg_replace('/[^\w~!$^().-]+/u', '', 'login;№н гин4123').PHP_EOL;
// А теперь все вхождения
if (preg_match_all('/[^\w~!$^().-]+/u', 'login;№н гин4123', $matches)) {
var_dump($matches[0]);
}
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
loginнгин4123
array(2) {
[0]=>
string(4) ";№"
[1]=>
string(1) " "
}