archive contents of directory

demo.php

use League\Flysystem\Filesystem;
use League\Flysystem\Adapter\Local;
use League\Flysystem\ZipArchive\ZipArchiveAdapter;
use Symfony\Component\Finder\Finder;

add_action( 'plugins_loaded', function(){
	require_once __DIR__ . '/vendor/autoload.php';

	$zip_archive = new Filesystem( new ZipArchiveAdapter( __DIR__ . '/archive.zip' ) );

	$finder = new Finder();
	$finder->files();
	$finder->followLinks();
	$finder->ignoreDotFiles( false );
	$finder->ignoreUnreadableDirs();

	foreach ( $finder->in( ABSPATH ) as $entry ) {
		$zip_archive->put( $entry->getPathname(), $entry->getContents() );
	}

});