PHP函数'scandir'在Windows上托管的WordPress上不起作用

Question

When i am using scandir function i get different results on linux and windows.

Windows i see only folder name

Linux it does the job under

I run a check if WordPress files has been changed ?

function find_all_files($dir, $deep) 
{ 
  if(strpos($dir,"wp-content") == false){

    $root = scandir($dir); 
    foreach($root as $value) 
    { 
      if($value === '.' || $value === '..') {continue;} 
      if(is_file("$dir/$value")) {
            $tmpFile = "$dir/$value";
            if(5000000>@filesize($tmpFile)){

            $result[]="$tmpFile";
            }
            continue;
        } 

    $tmp = "$dir/$value";
      if(strpos($tmp,"wp-content") == false){   
        if($deep == true){
            foreach(@$this->find_all_files("$dir/$value",true) as $value) 
            { 
              $tmpFile = $value;
                  if(5000000>@filesize($tmpFile)){

                    $result[]="$tmpFile"; 
                    }
            } 
        }
      }
    }
    //var_dump($result);

    return $result; 
    }
}

Answer 1

I had a similar issue and it all came down to:

1) if you mean "running on windows" OS you need to include, and start from the drive directory (where server is installed) in $dir to scan.

2) Windows might be picky about separators, compare your $dir with Wordpress ABSPATH and try to use PHP constant DIRECTORY_SEPARATOR instead of your own '/' separators.

3) And I asume you working with paths, not urls (http://localhost/wordpress/...plugin/dir/) . This is working for me on Windows 7, running Uniserver (LAMP):

$rootfolder = 'startfolder';
$dir = plugin_dir_path(dirname( __FILE__ )).DIRECTORY_SEPARATOR.$rootfolder;
$files = array_slice(scandir($dir), 2);

However , you need to cut down the path end begin in the install dir with ABSPATH or something. But I recommend to test where your filescript is, like plugins folder, to not consume a huge stall on errors while working with this kind of stuff.

Hint! The PHP docs about scandir has a lot off contributed functions about reading, retriving, scanning functions and issues. Take a look at: http://php.net/manual/en/function.scandir.php

Important! Do not start messing with windows folder access, and if you do, take a RAW copy of whole www directory first, otherwise exported Worpdress installs could get messy on a Apache server live.

Remember, did you manage to install a new plugin from the Wordpress admin, you propably dont have a folder access issue.

Hop this helps!