Question

If an item no longer exists in an array but there is a folder with the no longer required name. What would be the best way to check and remove the folder?

Example:

I have an array('blah','apple','oneDirection'); I will then run a command to create a folder/dir in a specific location with the names in the array but if oneDirection is no longer in the array I would like to delete the folder/dir -> Would I use in_array?

The array data comes from an external JSON feed so it will be removed automatically and when this is done I would like it to delete the folder/dir – I am not sure on the array and folder/dir name checking structure

Answer 1

Just a quick snippet that might serve as an example.

function del_dir($dir, $key, $root) {
        // may need to do more here like delete recursively
        $rp= realpath($root .'\\'. $dir);
        rmdir( $rp);
        echo "folder: $rp : removed\n";
}

// your root folder
$home_dir= "c:\\tmp";
// your array of folders
$folders= array("folder1", "folder2");
$fs_folders=array();
if ($dh = opendir($home_dir)) {
    while (($f = readdir($dh)) !== false) {
        if(is_dir("$home_dir\\$f")){
            if ($f != "." && $f != "..")
                $fs_folders[]= $f;
        }
    }
    closedir($dh);
}

$todel= array_diff($fs_folders, $folders);
array_walk($todel, "del_dir", $home_dir);