在内存中下载并解压缩zip存档 [英] In memory download and extract zip archive

问题描述

我想下载一个zip归档文件，并使用PHP将其解压缩到内存中.

I would like to download a zip archive and unzip it in memory using PHP.

这就是我今天所拥有的(对我来说这是太多的文件处理:)):

This is what I have today (and it's just too much file-handling for me :) ):

// download the data file from the real page
copy("http://www.curriculummagic.com/AdvancedBalloons.kmz", "./data/zip.kmz");

// unzip it
$zip = new ZipArchive;
$res = $zip->open('./data/zip.kmz');
if ($res === TRUE) {
    $zip->extractTo('./data');
    $zip->close();
}

// use the unzipped files...

推荐答案

警告:这无法在内存中完成-ZipArchive无法与内存映射文件"一起使用.

Warning: This cannot be done in memory — ZipArchive cannot work with "memory mapped files".

您可以使用 file_get_contents ^文档 ，因为它支持

You can obtain the data of a file inside a zip-file into a variable (memory) with file_get_contents^Docs as it supports the zip:// Stream wrapper ^Docs:

$zipFile = './data/zip.kmz';     # path of zip-file
$fileInZip = 'test.txt';         # name the file to obtain

# read the file's data:
$path = sprintf('zip://%s#%s', $zipFile, $fileInZip);
$fileData = file_get_contents($path);

您只能使用zip://或通过ZipArchive访问本地文件.为此，您可以先将内容复制到一个临时文件中并使用它:

You can only access local files with zip:// or via ZipArchive. For that you can first copy the contents to a temporary file and work with it:

$zip = 'http://www.curriculummagic.com/AdvancedBalloons.kmz';
$file = 'doc.kml';

$ext = pathinfo($zip, PATHINFO_EXTENSION);
$temp = tempnam(sys_get_temp_dir(), $ext);
copy($zip, $temp);
$data = file_get_contents("zip://$temp#$file");
unlink($temp);

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