Online PHP editor | refs for j25Pq

<?php $promos = [ '123' => ['id' => '123', 'weight' => 1], '234' => ['id' => '234', 'weight' => 3], '345' => ['id' => '345', 'weight' => 2], ]; $cr['promos'] = [ '123' => ['id' => '123', 'weight' => 1], '234' => ['id' => '234', 'weight' => 3], '345' => ['id' => '345', 'weight' => 2], ]; $promo_weights = array_column($promos, 'weight', 'id'); array_multisort($promo_weights, SORT_ASC, $cr['promos']); var_dump($cr['promos']);