How to set up php directory

How to set the directory in php: first create a PHP sample file; then create the directory through the "mkdir('test',0644)" function; and finally set the relevant permission parameters.

The operating environment of this tutorial: windows10 system, php5.6. This article is applicable to all brands of computers.

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php setting directory:

Create and delete directories

1.mkdir(' test',0644): Create directory

bool mkdir ( string pathname [, intpathname[,intmode = 0777 [, bool recursive = false [, resourcerecursive=false[,resourcecontext ]]] )

Note: $mode is the permission. Users, groups, and other users each have permissions of r=4/w=2/x=1, such as 0644 is rw_/r__ /r__ (Knowledge of Linux permissions)

2.rmdir('test'): Delete the directory. Note that the directory must be empty

3.unlink('test.php'): Delete the file

4. Use recursion to delete non-empty directories, as follows:

**注：切记排除目录下的.和..，否则会删除整个磁盘内容，且不进回收站！**
    function deleteDir($dirname){
        $dir=opendir($dirname);
        while($filename=readdir($dir)){
            if($filename!=='.'&&$filename!=='..'){
                $filename=$dirname.'/'.$filename;
                if(is_dir($filename)){
                    deleteDir($filename);
                }else{
                    unlink($filename);
                }
            }
    
        }    
            
        closedir($dir);
        rmdir($dirname);
    }
    deleteDir('test');

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