ソース <?php class zipdekure { private $zip; public function __construct() { $this->zip = new ZipArchive; } public function compress($filename, $archive, $flag = false) { if($flag){ $type = ZIPARCHIVE::CREATE; } else { $type = ZIPARCHIVE::OVERWRITE; } if($this->zip->open($filename, $type)){ $this->add($archive); $this->zip->close(); } else { return false; } return true; } public function decompress($