Getting started example of using mkdir to create multi-level directories in PHP

First introduce the mkdir() function:

mkdir($path,0777,true);

The first parameter: required, represents the path of the multi-level directory to be created;
The second parameter: set the directory The permissions, the default is 0777, which means the maximum possible access rights;
The third parameter: true means that the creation of multi-level directories is allowed.

Example code (supports creating Chinese directories):

<?php
 header("Content-type:text/html;charset=utf-8");
 //要创建的多级目录
 $path="dai/php/php学习";
 //判断目录存在否，存在给出提示，不存在则创建目录
 if (is_dir($path)){  
  echo "对不起！目录 " . $path . " 已经存在！";
 }else{
  //第三个参数是“true”表示能创建多级目录，iconv防止中文目录乱码
  $res=mkdir(iconv("UTF-8", "GBK", $path),0777,true); 
  if ($res){
   echo "目录 $path 创建成功";
  }else{
   echo "目录 $path 创建失败";
  }
 }
?>

For more introductory examples of using mkdir to create multi-level directories in PHP, please pay attention to the PHP Chinese website!