array_search_key.php

<?php

use Illuminate\Support\Arr;

function array_multi_search(array $array, $key)
{
    if (!is_string($key)) {
        return false;
    }

    $array = array_keys(Arr::dot($array));
    
    return array_reduce($array, function ($carry, $item) use ($key) {
        return strpos($item, $key) || $carry;
    }, false);
}