为什么每当我使用scandir（）我在数组的开头接收句点？ [英] Why is it whenever I use scandir() I receive periods at the beginning of the array?

问题描述

为什么每当我使用scandir（）我在数组的开头接收句点？

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

这些是当前的（。 ）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级。

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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