Hack is a programming language for the HipHop Virtual Machine (HHVM), created by Meta as a dialect of PHP. The language implementation is open-source, licensed under the MIT License. Wikipedia

Created Year: 2014
Developed by: Facebook • Meta Platforms
Implemented in: OCaml

Wikidata: Q15971618

Influenced by: C# • Haskell • Java • OCaml • PHP • Scala

<?hh 
echo "Hello World";