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<?php $a = array(1, 4, 7); $b = array(2, 5, 8); $c = array(3, 6, 9); function array_zip(...$arrays) { return array_merge(...array_map(NULL, ...$arrays)); } var_dump(implode(', ', array_zip($a, $b, $c))); var_dump(implode(', ', array_merge($a, $b, $c)));

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