dir函數

PHP dir()函數 (PHP dir() function)

dir() function is an instance of the directory class, it is used to read the directory, it includes handle and path properties – which can be used to get the resource id and path to the directory. Both handle and path have read(), rewind(), and close() methods.

dir()函數是目錄類的實例，用于讀取目錄，它包括句柄和路徑屬性–可用于獲取資源ID和目錄的路徑。 句柄和路徑都具有read() ， rewind()和close()方法。

Syntax:

句法：

dir(directory,context);

Parameter(s):

參數：

• directory – It is used to specify the path to the directory to be opened.

  directory –用于指定要打開的目錄的路徑。

• context – It is an optional parameter; it defines the context (a set of options that can modify the behavior of the stream).

  上下文 –它是一個可選參數； 它定義了上下文(一組可以修改流行為的選項)。

Return value:

返回值：

On success – it returns an instance to the directory, on fail – it returns "FALSE".

成功–將實例返回目錄；失敗–將返回“ FALSE”。

Example: PHP code to demonstrate example of dir() function

示例：PHP代碼演示dir()函數的示例

<?php //path to current working directory $cwd = dir(getcwd());echo "Directory handle: " . $cwd->handle . "<br>"; echo "Current path: " . $cwd->path . "<br>";//reading & printing the filenames using dir() while (($file = $cwd->read()) !== false){ echo "File: " . $file . "<br>"; } //closing the dir instance $cwd->close(); ?>

Output

輸出量

Directory handle: Resource id #5 Current path: /home File: . File: .. File: main.php

Reference: PHP dir() function

參考： PHP dir()函數

翻譯自: https://www.includehelp.com/php/dir-function-with-example.aspx

dir函數

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