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<?php $data = [ ['order' => null, 'seriesId' => 1], ['order' => 0, 'seriesId' => 1], ]; function validateOrderUniqueness(array $data) { $orders = array_filter(array_column($data, 'order')); $uniqueOrders = array_unique($orders); if ($orders !== $uniqueOrders) { throw new \Exception('validateOrderUniqueness fail'); } } function validateSeriesUniqueness(array $data) { $seriesIds = array_column($data, 'seriesId'); $uniqueSeriesIds = array_unique($seriesIds); if ($seriesIds !== $uniqueSeriesIds) { throw new \Exception('validateSeriesUniqueness fail'); } } validateOrderUniqueness($data); validateSeriesUniqueness($data);

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