ZipStream PHP

A fast and simple streaming zip file downloader for PHP. Using this library will save you from having to write the Zip to disk. You can directly send it to the user, which is much faster. It can work with S3 buckets or any PSR7 Stream.

Installation

Simply add a dependency on maennchen/zipstream-php to your project's composer.json file if you use Composer to manage the dependencies of your project. Use following command to add the package to your project's dependencies:

Usage Intro

Here's a simple example:

// Autoload the dependencies
require 'vendor/autoload.php';

// enable output of HTTP headers
$options = new ZipStream\Option\Archive();
$options->setSendHttpHeaders(true);

// create a new zipstream object
$zip = new ZipStream\ZipStream('example.zip', $options);

// create a file named 'hello.txt'
$zip->addFile('hello.txt', 'This is the contents of hello.txt');

// add a file named 'some_image.jpg' from a local file 'path/to/image.jpg'
$zip->addFileFromPath('some_image.jpg', 'path/to/image.jpg');

// add a file named 'goodbye.txt' from an open stream resource
$fp = tmpfile();
fwrite($fp, 'The quick brown fox jumped over the lazy dog.');
rewind($fp);
$zip->addFileFromStream('goodbye.txt', $fp);
fclose($fp);

// finish the zip stream
$zip->finish();

You can also add comments, modify file timestamps, and customize (or disable) the HTTP headers. It is also possible to specify the storage method when adding files, the current default storage method is DEFLATE i.e files are stored with Compression mode 0x08.

Known Issues

The native Mac OS archive extraction tool prior to macOS 10.15 might not open archives in some conditions. A workaround is to disable the Zip64 feature with the option enableZip64: false. This limits the archive to 4 Gb and 64k files but will allow users on macOS 10.14 and below to open them without issue. See #116.

The linux unzip utility might not handle properly unicode characters. It is recommended to extract with another tool like 7-zip. See #146.

It is the responsability of the client code to make sure that files are not saved with the same path, as it is not possible for the library to figure it out while streaming a zip. See #154.