PHP classes to provide Unicode Normalization. Performs the 4 normalizations: NFD: Canonical Decomposition NFC: Canonical Decomposition, followed by Canonical Composition NFKD: Compatibility Decomposition NFKC: Compatibility Decomposition, followed by Canonical Composition Complies with the official Unicode.org regression test. Uses UTF8 binary strings natively but can normalize a string in any UTF format. Fully tested with phpUnit. Code coverage test close to 100%.