PHP rewinddir（）函数与示例

柔光的暖阳◎ 2023-03-05 12:41 5阅读 0赞

## PHP rewinddir()函数 **(**PHP rewinddir() function**)** ##

**rewinddir() function** is used to rewind/reset the directory handle which is created by the [opendir() function][opendir_ function].

**rewinddir()函数**用于后退/重置由[opendir()函数][opendir_ function]创建的目录句柄。

**Syntax:**

**句法：**

rewinddir(dir_handle);

**Parameter(s):**

**参数：**

*  dir\_handle – it is an optional parameter which is used to specify the directory handle resource if we do not specify the directory handle resource – it assumes the last link opened with [opendir() function][opendir_ function].
    
    dir\_handle –是一个可选参数，如果我们未指定目录句柄资源，则用于指定目录句柄资源–假定使用[opendir()函数][opendir_ function]打开的最后一个链接。

**Return value:**

**返回值：**

It returns nothing.

它什么也不返回。

**Example: PHP code to demonstrate example of rewinddir() function**

**示例：PHP代码演示rewinddir()函数的示例**

<?php
    
    $path = "/home";
    
    //checking whether $path is a directory or not
    //then, opening the directory and reading its files
    if (is_dir($path)) {
        
        if ($dh = opendir($path)) {
        
            while (($file = readdir($dh)) !== false) {
        
                echo "File:" . $file . "<br/>";
            }
    		
            //rewinding/reset the directory handle
            rewinddir();
    		
    		//reading the files again
            while (($file = readdir($dh)) !== false) {
        
                echo "File:" . $file . "<br/>";
            }
            
    		//closing the directory
            closedir($dh);
        }
    }
    ?>

**Output**

**输出量**

File:.
    File:..
    File:main.php
    File:.
    File:..
    File:main.php

Reference: [PHP rewinddir() function][PHP rewinddir_ function]

参考： [PHP rewinddir()函数][PHP rewinddir_ function]

> 翻译自: [https://www.includehelp.com/php/rewinddir-function-with-example.aspx][https_www.includehelp.com_php_rewinddir-function-with-example.aspx]

[opendir_ function]: https://www.includehelp.com/php/opendir-function-with-example.aspx
[PHP rewinddir_ function]: https://www.w3schools.com/php/func_directory_rewinddir.asp
[https_www.includehelp.com_php_rewinddir-function-with-example.aspx]: https://www.includehelp.com/php/rewinddir-function-with-example.aspx