为什么每当我使用 scandir() 时，我都会在数组的开头收到句点?

Why is it whenever I use scandir() I receive periods at the beginning of the array?(为什么每当我使用 scandir() 时，我都会在数组的开头收到句点?)

问题描述

为什么每当我使用 scandir() 时，我都会在数组的开头收到句点?

Why is it whenever I use scandir() I receive periods at the beginning of the array?

Array
(
    [0] => .
    [1] => ..
    [2] => bar.php
    [3] => foo.txt
    [4] => somedir
)
Array
(
    [0] => somedir
    [1] => foo.txt
    [2] => bar.php
    [3] => ..
    [4] => .
)

推荐答案

那些是当前 (.) 和父 (..) 目录.它们存在于所有目录中，用于引用目录本身及其直接父目录.

Those are the current (.) and parent (..) directories. They are present in all directories, and are used to refer to the directory itself and its direct parent.

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