php中使用zip

<?// Creating object of the ZipArchive $zip = new ZipArchive();  $ow = 1; $file= "c:\master.zip"; if($zip->open($file,$ow?ZIPARCHIVE::OVERWRITE:ZIPARCHIVE::CREATE)===TRUE) {   //增加一个文件   $zip->addFile("c:\master.txt");      //a1.txt会被保存加压到a2.txt   $zip->addFile("c:\a1.txt", "c:\a2.txt");      $zip->addFile("c:\a3.txt");      //关闭    $zip->close();     } ?>

 $zip = new ZipArchive(); //打开master.zip  if ($zip->open("master.zip") === TRUE)  {   //解压的路径   $zip->extractTo("/path/to/folder/");   $zip->close(); } // 只解压一个文件  // Open master.zip for extracting single files if ($zip->open("master.zip") === TRUE)  {   // Will extract only fonts.css from master.zip to given path.   $zip->extractTo("/path/to/folder/","fonts.css");   $zip->close(); } //解压多个文件  if ($zip->open("master.zip") === TRUE)  {      $files = array("fonts.css","master.css");   $zip->extractTo("/path/to/folder/",$files);   $zip->close(); }