Legacy code that, although maintained slightly, will be phased out as we migrate the 2 backend tools that rely on it to other, more robust languages. See: http://bjorn.tipling.com/if-programming-languages-were-weapons
Our CMS, WordPress is based on PHP.
Linguagem do código principal da aplicação
Our app backend
As primary language
Still helpful in some micro services.
Backup for HHVM