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<?php function arraysSum(array ...$arrays): array { return array_map(function(array $array): int { return array_sum($array); }, $arrays); } print_r(arraysSum([1,2,3], [4,5,6], [7,8,9])); ?>
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => 6 [1] => 15 [2] => 24 )

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