public function dirs(array $dirs)
    {
        foreach ($dirs as $k => $v) {
            if (is_numeric($v)) {
                $this->dir($k, $v);
                continue;
            }
            $this->dir($v);
        }

        return $this;
    }
public function dirs(array $dirs)
    {
        foreach ($dirs as $k => $v) {
            if (is_numeric($v)) {
                $this->dir($k, $v);
                continue;
            }
            $this->dir($v);
        }

        return $this;
    }
public function dirs ( array $ dirs ) { foreach ( $ dirs as $ k => $ v ) { if ( is_numeric ( $ v ) ) { $ this -> dir ( $ k , $ v ) ; continue ; } $ this -> dir ( $ v ) ; } return $ this ; }
Add directories to clean.

@param array $dirs
Either an array of directories or an array keyed by directory with the
number of items to keep within this directory as value.

@return $this
Add directories to clean .