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@ 2024-11-09T02:02:03Z

<?php

$arrays = [
    ['car' => '3', 'bus' => '2'],
    ['dog' => '1', 'car' => '2', 'bird' => '9'],  
];

$defaults = array_fill(0, count($arrays), null);
$result = [];
foreach ($arrays as $i => $array) {
    foreach ($array as $k => $v){
        $result[$k] ??= $defaults;
        $result[$k][$i] = $v;
    }
}
var_export($result);

Output
Performance
VLD
References
Branches

var_export: documentation ( source)
array_fill: documentation ( source)

preferences:dark modelive previewkey bindings

64.71 ms | 405 KiB | 5 Q