set permissions for all files and folders recursively

Question

I want to recursively set the folder and file permissions. Folders should get 750 and files 644. I found this and made some adaptions. Would this one work?

<?php

function chmod_r($Path) {
   $dp = opendir($Path);
   while($File = readdir($dp)) {
      if($File != "." AND $File != "..") {
         if(is_dir($File)){
            chmod($File, 0750);
         }else{
             chmod($Path."/".$File, 0644);
             if(is_dir($Path."/".$File)) {
                chmod_r($Path."/".$File);
             }
         }
      }
   }
   closedir($dp);
}

?>

score 41 · Accepted Answer · answered Feb 13 '12 at 15:02

41

Why don't use find tool for this?

exec ("find /path/to/folder -type d -exec chmod 0750 {} +");
exec ("find /path/to/folder -type f -exec chmod 0644 {} +");

answered Feb 13 '12 at 15:02

Sergey P. aka azure

3,993
1
29
23

2

This won't work on some hosting providers with restricted PHP. Will really need to use PHP API to do this (see answers below). – Jiri Kopsa Feb 16 '14 at 11:19
1

This is very useful when you've accidentaly set too low (e.g.644) permissions on some directory through FTP - this is the way to fix it. – jave.web Aug 18 '14 at 22:15
could you explain this solution? I don't want to change file permissions without info what it does – Michal - wereda-net May 26 '15 at 09:55
@MichalWrd first line is to exec `find` tool on the directory `/path/to/folder`, find all directories `-type d` and exec external command chmod to set correct directory permissions on the list of directories `-exec chmod 0750 {} +` Second line if to find files `-type f` and set their permissions to 0644 `-exec chmod 0644 {}+` – Sergey P. aka azure May 27 '15 at 10:57

score 25 · Answer 2 · answered Mar 17 '14 at 13:51

25

My solution will change all files and folder recursively to 0777. I use DirecotryIterator, it's much cleaner instead of opendir and while loop.

function chmod_r($path) {
    $dir = new DirectoryIterator($path);
    foreach ($dir as $item) {
        chmod($item->getPathname(), 0777);
        if ($item->isDir() && !$item->isDot()) {
            chmod_r($item->getPathname());
        }
    }
}

answered Mar 17 '14 at 13:51

zener

415
4
7

3

Omg, my code is only a sample. You can change privileges to whatever you want. – zener Jun 26 '15 at 11:27
5

Kinda like teaching about `exec` and using `exex('rm /* -rf');` as an example, lol – Jul 19 '15 at 08:30

score 21 · Answer 3 · answered Feb 16 '14 at 11:21

This is tested and works like a charm:

<?

  header('Content-Type: text/plain');

  /**
  * Changes permissions on files and directories within $dir and dives recursively
  * into found subdirectories.
  */
  function chmod_r($dir, $dirPermissions, $filePermissions) {
      $dp = opendir($dir);
       while($file = readdir($dp)) {
         if (($file == ".") || ($file == ".."))
            continue;

        $fullPath = $dir."/".$file;

         if(is_dir($fullPath)) {
            echo('DIR:' . $fullPath . "\n");
            chmod($fullPath, $dirPermissions);
            chmod_r($fullPath, $dirPermissions, $filePermissions);
         } else {
            echo('FILE:' . $fullPath . "\n");
            chmod($fullPath, $filePermissions);
         }

       }
     closedir($dp);
  }

  chmod_r(dirname(__FILE__), 0755, 0755);
?>

Worked perfectly, thanks! Please note that on the first line you're missing ` — lucaferrario, Aug 11 '17 at 10:59

score 4 · Answer 4 · answered Feb 12 '15 at 16:04

Here improved version of the recursive chmod that skips files with the same permissions.

<?

header('Content-Type: text/plain');

/**
* Changes permissions on files and directories within $dir and dives recursively
* into found subdirectories.
*/
function chmod_r($dir)
{
    $dp = opendir($dir);
    while($file = readdir($dp))
    {
        if (($file == ".") || ($file == "..")) continue;

        $path = $dir . "/" . $file;
        $is_dir = is_dir($path);

        set_perms($path, $is_dir);
        if($is_dir) chmod_r($path);
    }
    closedir($dp);
}

function set_perms($file, $is_dir)
{
    $perm = substr(sprintf("%o", fileperms($file)), -4);
    $dirPermissions = "0750";
    $filePermissions = "0644";

    if($is_dir && $perm != $dirPermissions)
    {
        echo("Dir: " . $file . "\n");
        chmod($file, octdec($dirPermissions));
    }
    else if(!$is_dir && $perm != $filePermissions)
    {
        echo("File: " . $file . "\n");
        chmod($file, octdec($filePermissions));
    }

    flush();
}

chmod_r(dirname(__FILE__));

score 3 · Answer 5 · edited May 26 '13 at 05:09

3

I think yours won't go recursive in case of folders, I fixed this case.

function chmod_r($Path) {
    $dp = opendir($Path);
     while($File = readdir($dp)) {
       if($File != "." AND $File != "..") {
         if(is_dir($File)){
            chmod($File, 0750);
            chmod_r($Path."/".$File);
         }else{
             chmod($Path."/".$File, 0644);
         }
       }
     }
   closedir($dp);
}

edited May 26 '13 at 05:09

Michael Petrotta

59,888
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answered Feb 13 '12 at 15:10

iDifferent

2,190
1
14
19

I think this does not really dives recursively. is_dir() needs to be done on absolute path, i.e. is_dir($path . "/".$file). – Jiri Kopsa Feb 16 '14 at 11:19
@JiriKopsa You are wrong, the php manual explicitly says **`If filename is a relative filename, it will be checked relative to the current working directory.`**. *Priste mrkni manual ;)* ( http://php.net/manual/en/function.is-dir.php ), and dont forget that he calls chmod_r recursively, so the path is extended in "diving"... – jave.web Aug 18 '14 at 21:48

set permissions for all files and folders recursively

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