Php generates a nested key array

$tpl = [
    "a",
    "b",
    "c",
    "d",
];
$value = "hello";
  • how to generate the following in code?
$arr["a"]["b"]["c"]["d"] = $value;
Mar.12,2022

$tpl = array_reverse($tpl);
$arr = $value;
foreach($tpl as $k) {
    $arr = [$k => $arr];
}
print_r($arr);
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