## Requirements

This extension requires » libzip. Version 1.1.2 was bundled in PHP until version 7.3.

Minimal supported version is 0.11, but higher is highly recommended.

- Version 1.2 required for encryption support, see ZipArchive::setEncryptionIndex()
- Version 1.3 required for progress support, see ZipArchive::registerProgressCallback()
- Version 1.6 required for cancel support, see ZipArchive::registerCancelCallback()