3v4l.org

run code in 300+ PHP versions simultaneously
<?php $input = [ [1, 2, 3, 4], [1, 2, 3, 4], [1, 2, 3, 4], ]; $keys = ['A', 'B', 'C', 'D']; $input = array_map(function($a) use ($keys) { return array_combine($keys, $a); }, $input); var_dump($input);
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) { ["A"]=> int(1) ["B"]=> int(2) ["C"]=> int(3) ["D"]=> int(4) } [1]=> array(4) { ["A"]=> int(1) ["B"]=> int(2) ["C"]=> int(3) ["D"]=> int(4) } [2]=> array(4) { ["A"]=> int(1) ["B"]=> int(2) ["C"]=> int(3) ["D"]=> int(4) } }

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104.28 ms | 2119 KiB | 4 Q