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<?php $str = '/et/ettevote/filter/abc/ü'; $result = preg_match('/\/ettevote\/filter\/abc\/([A-Za-z0-9-&ŠšŽžÕõÄäÖöÜü])/u', $str, $matches); var_dump([$result, $matches]);
based on TSm4J
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.26, 7.4.0 - 7.4.13, 8.0.0 - 8.0.2
array(2) { [0]=> int(1) [1]=> array(2) { [0]=> string(23) "/ettevote/filter/abc/ü" [1]=> string(2) "ü" } }