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:

composer require maennchen/zipstream-php

If you want to useaddFileFromPsr7Stream` (Psr\Http\Message\StreamInterface) or use a stream instead of a resource as outputStream, the following dependencies must be installed as well:

composer require psr/http-message guzzlehttp/psr7

If composer install yields the following error, your installation is missing the mbstring extension, either install it or run the follwoing command:

Your requirements could not be resolved to an installable set of packages.

Problem 1
    - Root composer.json requires PHP extension ext-mbstring * but it is
      missing from your system. Install or enable PHP's mbstrings extension.

composer require symfony/polyfill-mbstring

Usage Intro

Here's a simple example:

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

// create a new zipstream object
$zip = new ZipStream\ZipStream(
   outputName: 'example.zip',

   // enable output of HTTP headers
   sendHttpHeaders: true,
);

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

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

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

// add a file named 'streamfile.txt' from the body of a `guzzle` response
// Setup with `psr/http-message` & `guzzlehttp/psr7` dependencies required.
$zip->addFileFromPsr7Stream(
   fileName: 'streamfile.txt',
   stream: $response->getBody(),
);

// 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.