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<?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]); }
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.32, 8.3.0 - 8.3.33, 8.4.1 - 8.4.24, 8.5.0 - 8.5.9
loginнгин4123 array(2) { [0]=> string(4) ";№" [1]=> string(1) " " }
preferences:
117.13 ms | 1539 KiB | 4 Q