Php 将字符串的平面数组转换为关联数组

我想转换这个字符串数组

$arList = ["the","quick","brown","fox"];

转换成这种格式

[
   "the" => [
        "quick" => [
            "brown" => []
        ]
   ]
]

很抱歉没有发布一些代码

这是我试过的

<?php

$arList = ["the","quick","brown","fox"];

$newList = [];
$pointer = $newList;
foreach($arList as $item) {
    $pointer[$item] = [];
    $pointer = &$newList[$item];
}

echo "<pre>";
print_r($newList);
echo "</pre>";

---

我使用以下代码从网上找到了一个解决方案

请发布您的一些代码/努力，然后只有我们可以帮助您。福克斯发生了什么事？
$result = array_reduce(array_reverse($arList), function($prevArray, $key){
    return $prevArray ? [$key => $prevArray] : [$key];
}, null);