Multi-byte Keyword Generator extracts meta keywords from multi-byte text. It is an enhanced version of the "Automatic Keyword Generator" class originally written by Ver Pangonilo. This version provides better word segmentation, the ability to handle multi-byte strings, and support for text in multiple languages.
Vault is a PHP class for implementing security and encryption. It was designed and built for use in the Vault product range (Message Vault and Password Vault), but has been released in its own right for others to benefit from. It uses a combination of symmetric and asymmetric encryption including SSL (2048), SHA256, SHA512, and ASE256. It also features randomly generated salts and key verification.
VAT Checker for EU countries is a simple PHP class to check the validity of a VAT number from the European Union countries. It provides a single function that accepts a VAT number and a 2-letter country abbreviation as input and returns a boolean value to indicate whether the number is valid.