The most easily recognizable advantage of the new PHP 7 engine is the significant performance improvement.
Performance is undoubtedly the biggest reason why you should upgrade your servers as soon as a stable version is released. The core refactoring introduced by the phpng RFC makes PHP 7 as fast as HHVM.
See the results below, they are pretty self-explanatory – PHP 7 Twice The Speed.
why use php 7
