Google2FA is a standalone PHP library implementing the Time-based One-Time Password (TOTP) algorithm as specified in RFC 6238, fully compatible with Google Authenticator and similar authenticator apps. It provides secure secret key generation (base32-encoded), HMAC-based OTP computation with configurable algorithms (SHA1, SHA256, SHA512), and OTP verification with a sliding window to accommodate clock drift. The library also includes a helper for generating otpauth:// URLs for QR code integration. It has zero external runtime dependencies beyond a constant-time base32 encoder and is designed as a single-class library with traits for modularity. The codebase is well-tested across PHP 7.4 to 8.6 (beta), employs static analysis (PHPStan, Psalm), and follows a clean, maintainable architecture with clear exception hierarchies. It is not a framework but can be used in any PHP project.

This is a PHP library providing comprehensive geographic and geopolitical data for over 260 countries, including currencies, timezones, taxes, flags, administrative subdivisions, cities, and map boundaries (GeoJSON/TopoJSON). The package is designed for applications that need offline access to richly structured country data, such as form validation, e-commerce tax calculation, map rendering, and localization. The core architecture leverages a lazy hydration pattern to load expensive data on demand, a custom extended Laravel Collection with case-insensitive and magic property access, and a configurable cache layer (PSR-16). Data is stored as thousands of static JSON files organized by type and country code, sourced from Natural Earth, mledoze, timezonedb, and other public datasets. Update scripts exist but are not automated, and the data snapshot has some stale entries (e.g., obsolete currency codes). The package shows solid engineering for its niche but has minimal test coverage and no automated data freshness checks.