<?php $a = [ '0' => ['name'=>'Apple', 'id' => 1], '1' => ['name'=>'Banana', 'id' => 2], '2' => ['name' => 'orange', 'id' => 3], ]; $b = [ '0' => ['price'=> 20, 'a_id' => 2], '1' => ['price'=> 10, 'a_id' => 3], '3' => ['price'=> 30, 'a_id' => 1], ]; $result = array_column($a, null, 'id'); foreach ($b as ['a_id' => $a_id, 'price' => $result[$a_id]['price']]); var_export(array_values($result));
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