PHP uses the mkdir() function to create multi-level directories

angryTom
Release: 2023-04-07 15:56:01
forward
4164 people have browsed it

The following introduces mkdir() in php to create multi-level directories.

1. Function description

bool mkdir ( string $pathname [, int $mode = 0777 [, bool $recursive = false [, resource $context ]]] )

The first parameter $pathname: required, represents the path of the one-level or multi-level directory to be created;

The second parameter $mode: sets the permissions of the directory, the default is 0777, which means the maximum possible access rights;

The third parameter $recursive: true means that the creation of multi-level directories is allowed.

2. Return value

Returns TRUE on success, or FALSE on failure.

3. Classic examples

<?php
 
header("Content-type:text/html;charset=utf-8");
 
//要创建的多级目录
$path = "./whm/php/php学习";
 
// 判断目录存在否,存在给出提示,不存在则创建目录
// is_dir() - 判断给定文件名是否是一个目录
if (is_dir($path)){
    echo "对不起!目录 " . $path . " 已经存在!";
}else{
    // 第三个参数为true时表示能创建多级目录
    $res=mkdir($path, 0777, true);
    if ($res){
        echo "目录 $path 创建成功";
    }else{
        echo "目录 $path 创建失败";
    }
}
Copy after login

4. Error examples

I believe many beginners will create multi-level directories like this. In fact, it is wrong to create multi-level directories like this

mkdir(&#39;aa/bb/cc&#39;);//如果有aa/bb目录就可以成功创建cc目录否则会报错哦,如果要创建多目录我们看下面代码
Copy after login

5. Solution to the problem of no write permission after mkdir()

mkdir(&#39;文件地址&#39;, 0777); 
chmod(&#39;文件地址&#39;, 0777);
// 最后,需要注意一点,权限值最好使用八进制表示,即 0 开头,而且一定不要加引号。
//  原因:代码错误,&#39;0777&#39;不应使用字符串参数,而是使用0777值
Copy after login

For more PHP related knowledge, please visit PHP中文网!

The above is the detailed content of PHP uses the mkdir() function to create multi-level directories. For more information, please follow other related articles on the PHP Chinese website!

Related labels:
source:www.whmblog.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template