Alphanumeric regex that supports UTF characters?

Question

So - for a registration form (username field) I want to allow alphabet characters, numbers, underscores and dashes. The issue is -> user should be able to use their native alphabets, not just latin. So Cyrillic and other characters should be allowed.... but not chars like: $%^*() etc.

<?php                                                                           
   $test = 'dshfjfj_-7685гдежзи $@@@@@';
   echo preg_match('/^[\pL\pN_-]+/u', $test);
?>

^ above regex results in true, even though I don't wanna allow @ -> what am I doing wrong?

Answer 1

Use end of line anchor $ also to avoid matching unwanted input:

preg_match('/^[\p{L}\p{N}_-]+$/u', $test);