$zip = new ZipArchive(); // 打开一个zip文档，ZipArchive::OVERWRITE：如果存在这样的文档，则覆盖；ZipArchive::CREATE：如果不存在，则创建 $res = $zip->open('test.zip', ZipArchive::OVERWRITE | ZipArchive::CREATE); if($res)
{ // 添加 a.txt 到压缩文档 $zip->addFile('a.txt'); // 添加一个字符串到压缩文档中的b.txt $zip->addFromString('b.txt', 'this is b.txt'); // 添加一个空目录b到压缩文档 $zip->addEmptyDir('b');
} // 关闭打开的压缩文档 $zip->close();

 1 /**  2  * @param $dir 目标目录路径  3  * @param $zip ZipArchive类对象  4  * @param $prev  5 */  6 function compressDir($dir, $zip, $prev='.')  7 {  8 $handler = opendir($dir);  9 $basename = basename($dir); 10 $zip->addEmptyDir($prev . '/' . $basename); 11 while($file = readdir($handler)) 12  { 13 $realpath = $dir . '/' . $file; 14 if(is_dir($realpath)) 15  { 16 if($file !== '.' && $file !== '..') 17  { 18 $zip->addEmptyDir($prev . '/' . $basename . '/' . $file); 19 compressDir($realpath, $zip, $prev . '/' . $basename); 20  } 21 }else 22  { 23 $zip->addFile($realpath, $prev. '/' . $basename . '/' . $file); 24  } 25  } 26 27 closedir($handler); 28 return null; 29 } 30 31 $zip = new ZipArchive(); 32 $res = $zip->open('test.zip', ZipArchive::OVERWRITE | ZipArchive::CREATE); 33 if($res) 34 { 35 compressDir('./test', $zip); 36 $zip->close(); 37 }

$zip = new ZipArchive(); $res = $zip->open('test1.zip'); if($res)
{ // 解压缩文件到指定目录 $zip->extractTo('test'); $zip->close();
}

header('Content-Type:text/html;charset=utf-8'); header('Content-disposition:attachment;filename=test.zip'); $filesize = filesize('./test.zip'); readfile('./test.zip'); header('Content-length:'.$filesize); unlink('./test.zip');