Online PHP editor | refs for 1U4hf

<?php $arr = [ 'foo', 'foo', 'bar', 'baZ', 'baz', 'fÖo', 'foeo' ]; $collator = new Collator('de'); $collator->setStrength(Collator::PRIMARY); $arr2 = []; foreach ($arr as $v) { foreach ($arr2 as $v2) { if ($collator->compare($v, $v2) === 0) { continue 2; } } $arr2[] = $v; } var_dump($arr2);