How to delete empty folders in php

How to delete empty folders in php: 1. Traverse the directory and subdirectories; 2. Use scandir to determine whether the directory is empty. If it is empty, use "rmdir" to delete the empty folder.

The operating environment of this article: Windows 7 system, PHP version 7.1, DELL G3 computer

How to delete empty folders with php?

php Delete empty directories and empty subdirectories

Steps:

1. Traverse directories and subdirectories

2. Use scandir to determine whether the directory is empty. If it is empty, use rmdir to delete it.

<?php
/** 删除所有空目录
* @param String $path 目录路径
*/
function rm_empty_dir($path){
    if(is_dir($path) && ($handle = opendir($path))!==false){
        while(($file=readdir($handle))!==false){     // 遍历文件夹
            if($file!=&#39;.&#39; && $file!=&#39;..&#39;){
                $curfile = $path.&#39;/&#39;.$file;          // 当前目录
                if(is_dir($curfile)){                // 目录
                    rm_empty_dir($curfile);          // 如果是目录则继续遍历
                    if(count(scandir($curfile))==2){ // 目录为空,=2是因为. 和 ..存在
                        rmdir($curfile);             // 删除空目录
                    }
                }
            }
        }
        closedir($handle);
    }
}
 
$folder = &#39;目标文件夹&#39;;
 
rm_empty_dir($folder);
?>

Using shell is much simpler:

find 目标文件夹 -mindepth 1 -depth -empty -type d -exec rm -r {} \;

Recommended learning: "PHP Video Tutorial"

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