php关于zip的应用

/**	 * 	 * 创建压缩包	 * @param array $arr 需要压缩的文件部分路径和文件名，形如 array(	 *   '/file/upload/1.php',	 *   '/file/upload/2011/1.jpg',	 * )	 * 	 * @return string 压缩包的部分路径和文件名，形如/file/uplaod/zip/123.zip	 */	public static function zip($arr)	{	    //首先我建立一个目录	    $save_path = '/file/upload/zip' . Dat::getHourPath();	    $path = APPLICATION_PATH . '/destoon' . $save_path;	    Sys::createDir($path);	    	    $zipname = strval(time()) . mt_rand(100000, 999999) . '.zip';	    $zip_fullname = $path . '/' . $zipname;	    $zip_obj = new ZipArchive();        if ($zip_obj->open($zip_fullname, ZIPARCHIVE::CREATE) !== true) {             return false;         }         foreach ($arr as $value) {         //  $zip->addFile($path, mb_convert_encoding ( basename($path), 'GBK'  ,'UTF-8'));             $zip_obj->addFile( APPLICATION_PATH . '/destoon' . $value, basename($value) );         }         $zip_obj->close();        return $save_path . '/' . $zipname;	    	}		/**	 * 解压缩	 * 	 * @param string $zipname 压缩包的部分路径和文件名，形如'/file/upload/1.zip'	 * @param string $path 解压后的文件夹全路径	 *      * @return array 解压后的文件数组，部分路径和文件名，形如array(     *     '/file/1.php',     *     '/file/12.png',     * )	 */	public static function unzip($zipname , $path='')	{	    if (!$path ) {	        $path = '/file/tempzip_folder/' .               strval(time()) . mt_rand(100000, 999999);	                $newpath = APPLICATION_PATH . '/destoon' . $path; 	    }	    else {	        $newpath = $path;	        $path = preg_replace('#^.+/destoon(.+)$#', '$1', $newpath);	    }	            Sys::createDir($newpath);                    $filename = APPLICATION_PATH . '/destoon' . $zipname;        //第一件事是解压        $zip = new ZipArchive();        $arr = array();        if ($zip->open($filename) === true) {            $zip->extractTo($newpath);            $zip->close();                        $temp = scandir($newpath);            foreach ($temp as $value) {                if ($value != '.' && $value != '..') {                    $arr[] = $path . '/' . basename($value);                }            }        }        return $arr;	    	}