php zip 内存,PHP核心ZipArchive与ZipStream-PHP

根据我的经验，最好的解决方案是使用aws-sdk-php通过启用了registerStreamWrapper()的s3client访问S3上的对象。然后使用fopen从S3流式传输对象并将该流直接提供给ZipStream的addFileFromStream()函数，并让ZipStream从那里获取它。没有ZipArchive，没有大量内存开销，没有在服务器上创建zip或从Web服务器上的S3复制文件以随后用于流式传输zip。

所以：

//...

$s3Client->registerStreamWrapper(); //required

//test files on s3

$s3keys = array(

"ziptestfolder/file1.txt",

"ziptestfolder/file2.txt"

);

// Define suitable options for ZipStream Archive.

$opt = array(

'comment' => 'test zip file.',

'content_type' => 'application/octet-stream'

);

//initialise zipstream with output zip filename and options.

$zip = new ZipStream\ZipStream('test.zip', $opt);

//loop keys useful for multiple files

foreach ($s3keys as $key) {

// Get the file name in S3 key so we can save it to the zip

//file using the same name.

$fileName = basename($key);

//concatenate s3path.

$bucket = 'bucketname';

$s3path = "s3://" . $bucket . "/" . $key;

//addFileFromStream

if ($streamRead = fopen($s3path, 'r')) {

$zip->addFileFromStream($fileName, $streamRead);

} else {

die('Could not open stream for reading');

}

}

$zip->finish();如果您在Symfony控制器操作中使用ZipStream，请参阅此答案：https://stackoverflow.com/a/44706446/136151