Nonetheless, considering that variation 7.2 Zend has surpassed HHVM, and also HHVM 3.24 is the last variation to formally support PHP. PHP defines a big selection of functions in the core language as well as lots of are also offered in various expansions; these features are well documented in the on the internet PHP paperwork. Nonetheless, the built-in library has a variety of calling conventions as well as linked inconsistencies, as described under history above. PHP shops integers in a platform-dependent variety, either as a 32, 64 or 128-bit signed integer matching to the C-language long type.