<?php setlocale(LC_COLLATE, 'de_DE.UTF-8', 'de_DE@euro', 'de_DE', 'deu_deu'); var_dump(PHP_VERSION); function test($a, $b) { if (version_compare(PHP_VERSION, '7.0', '>=')) { return $a <=> $b; } return strcoll($a, $b); } test('a', 'b');
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