Online PHP editor | output for 7PFAA

@ 2018-11-16T13:56:30Z

<?php
$arr1 = [
  [
    "id"=>"3",
    "weight"=>"20",
    "percentage"=>"80",
  ],
  [
    "id"=>"1",
    "weight"=>"50",
    "percentage"=>"80",
  ],
  [
    "id"=>"2",
    "weight"=>"40",
    "percentage"=>"80",
  ]
];
$arr2 = [
  [
    "id"=>"1",
    "stock"=>"9539.00"
  ],
  [
    "id"=>"2",
    "stock"=>"9468.00"
  ],
  [
    "id"=>"3",
    "stock"=>"9295.00"
  ]
];

$keys = [];
foreach ($arr2 as $item)
    $keys[$item['id']] = $item['stock'];

$newArr = array_map(function($item) use($keys){ 
    $item['stock'] = $keys[$item['id']];
    return $item;
}, $arr1);

var_dump($newArr);

Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3: array(3) { [0]=> array(4) { ["id"]=> string(1) "3" ["weight"]=> string(2) "20" ["percentage"]=> string(2) "80" ["stock"]=> string(7) "9295.00" } [1]=> array(4) { ["id"]=> string(1) "1" ["weight"]=> string(2) "50" ["percentage"]=> string(2) "80" ["stock"]=> string(7) "9539.00" } [2]=> array(4) { ["id"]=> string(1) "2" ["weight"]=> string(2) "40" ["percentage"]=> string(2) "80" ["stock"]=> string(7) "9468.00" } }

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