While the PHP 6 Unicode experiment had never been released, several articles and book titles referenced the PHP 6 name, which might have caused confusion if a new release were to reuse the name.
Mens PHP 6 Unicode-eksperimentet aldrig var blevet frigivet, henviste flere artikler og bogtitler til PHP 6-navnet, hvilket kunne have forårsaget forvirring, hvis en ny version skulle genbruge navnet.