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<?php $order_list = array ( array ("tangible", 1, 8, 1, 19000), array ("tangible", 6, 2, 10, NULL), array ("tangible", 1, 17, 1, 28000) ); usort($order_list, function ($a, $b) { if( ($c = $a[1] - $b[1]) !== 0) { return $c; } else { return $b[2] - $a[2]; } }); print_r($order_list);

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