如果这些键始终存在，那么您实际上并不需要循环:

If those keys are always present then you don't really need a loop:

$create = $original['create'];
$outrole = $original['outrole'];

您可以添加检查是否已设置:

You can add a check if they are set:

$create = isset($original['create']) ? $original['create'] : array();

如果它不存在，这会将其设置为一个空白数组.

This will set it to a blank array if it's not present.