Question

我正在尝试将图像添加到zip文件并强制使用标题来下载它。以下是我现在正在使用的代码片段。

$zip = new ZipArchive();
$zip_name = 'design_images_'.time() .".zip";
if($zip->open($zip_name, ZIPARCHIVE::CREATE)!==TRUE){
    $error .= "* Sorry ZIP creation failed at this time";
}
    $i = 0;
foreach($valid_files as $file){
    $image_name = 'design_image_' . $i;
    $zip->addFile($file, $image_name);
    $i++;
}
$zip->close();
if(file_exists($zip_name)){
    // force to download the zip
    header("Pragma: public");
    header("Expires: 0");
    header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
    header("Cache-Control: private",false);
    header('Content-type: application/zip');
    header('Content-Disposition: attachment; filename="'.$zip_name.'"');
    readfile($zip_name);

}

当我尝试打开zip文件时，它会出错：存档已损坏。

Answer 1

在提供下载之前尝试清理输出缓冲区：

if(file_exists($zip_name)){

  // Clean the output buffer.
  while (ob_get_level()) {
    ob_end_clean();
  }

  // force to download the zip
  header("Pragma: public");
  header("Expires: 0");
  header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
  header("Cache-Control: private",false);
  header('Content-type: application/zip');
  header('Content-Disposition: attachment; filename="'.$zip_name.'"');
  readfile($zip_name);

}

有Php zip下载代码的问题

1 个答案: