php ZipArchive实现文件夹打包下载

function addFileToZip($strPath, ZipArchive $pZip){
  $filelist=scandir($strPath);
  if(empty($filelist))die("空目录");
  foreach ($filelist as $k => $filename) {
    if ($filename != "." && $filename != ".."){
      $pZip->addFile($strPath.$filename);
    }
  }
}
$tmpdir="uploads";
$strPath = '打包名称.zip';
try{
  $pZip = new ZipArchive();
  $pZip->open($strPath, ZipArchive::CREATE);
  addFileToZip($tmpdir, $pZip);
  $pZip->close();
}
catch (Exception $e){
  throw new BusinessException('文件打包异常：'.$e->getMessage());
}
header("location:{$strPath}");die;

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