<?php declare(strict_types=1); namespace ZipStream\Zip64; use ZipStream\PackField; /** * @internal */ abstract class DataDescriptor { private const SIGNATURE = 0x08074b50; public static function generate( int $crc32UncompressedData, int $compressedSize, int $uncompressedSize, ): string { return PackField::pack( new PackField(format: 'V', value: self::SIGNATURE), new PackField(format: 'V', value: $crc32UncompressedData), new PackField(format: 'P', value: $compressedSize), new PackField(format: 'P', value: $uncompressedSize), ); } }