public function mustRefresh()
    {
        if ($this->fileExists()) {
            $this->_cleanFilesStack();
            $_dest = new \SplFileInfo($this->getDestinationRealPath());
            if (!empty($this->files_stack)) {
                foreach ($this->files_stack as $_file) {
                    if ($_file->getMTime() > $_dest->getMTime()) {
                        return true;
                    }
                }
                return false;
            }
        }
        return true;
    }
public function mustRefresh()
    {
        if ($this->fileExists()) {
            $this->_cleanFilesStack();
            $_dest = new \SplFileInfo($this->getDestinationRealPath());
            if (!empty($this->files_stack)) {
                foreach ($this->files_stack as $_file) {
                    if ($_file->getMTime() > $_dest->getMTime()) {
                        return true;
                    }
                }
                return false;
            }
        }
        return true;
    }
public function mustRefresh ( ) { if ( $ this -> fileExists ( ) ) { $ this -> _cleanFilesStack ( ) ; $ _dest = new \ SplFileInfo ( $ this -> getDestinationRealPath ( ) ) ; if ( ! empty ( $ this -> files_stack ) ) { foreach ( $ this -> files_stack as $ _file ) { if ( $ _file -> getMTime ( ) > $ _dest -> getMTime ( ) ) { return true ; } } return false ; } } return true ; }
Check if a destination file already exist for the current object and if it is fresher than sources

@return bool True if the sources had been modified after minified file creation
Check if a destination file already exist for the current object and if it is fresher than sources