3v4l.org

run code in 500+ PHP versions simultaneously
<?php $arr = [['bla' => 1], ['bla' => 3]]; $arr2 = [['blu' => 2], ['blu' => 4]]; $newArr = []; foreach ($arr as $key => $value) { $newArr[] = $value + $arr2[$key]; } var_dump($newArr);
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.21, 8.5.0 - 8.5.7
array(2) { [0]=> array(2) { ["bla"]=> int(1) ["blu"]=> int(2) } [1]=> array(2) { ["bla"]=> int(3) ["blu"]=> int(4) } }

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