public static function rmdir($dir)
    {
        // List the contents of the directory table
        $dir_content = scandir ($dir);
        // Is it a directory?
        if ($dir_content!==false) {
            // For each directory entry
            foreach ($dir_content as &$entry) {
                // Unix symbolic shortcuts, we go
                if (!in_array ($entry, array ('.','..'))) {
                    // We find the path from the beginning
                    $entry = $dir.DIRECTORY_SEPARATOR. $entry;
                    // This entry is not an issue: it clears
                    if (!is_dir($entry)) {
                        unlink ($entry);
                    } else { // This entry is a folder, it again on this issue
                        self::rmdir($entry);
                    }
                }
            }
        }
        // It has erased all entries in the folder, we can now erase
        rmdir ($dir);
    }