An open-source, server-side scripting, PHP is a programming language which is primarily used for web development. PHP is also an integral part of Wordpress as the core software of WordPress is written in PHP that makes it a prime technical language for the developer community. However, in order to under this language, one must have a basic knowledge about PHP. And this will tell you all about that.
In order to have a diverse knowledge of PHP, one must know to be aware of its version. In total, PHP has two different versions, PHP 5 and PHP7, that a developer or learner can install on the server on which he/she is working. The older version is PHP 5 which is almost at the end of his life. However, PHP 5.6 is the recent most version of PHP 5 version that does not have active support.
However, the recent version of PHP is 7.2 which bids impressive performance improvements. High performance along the improved security are the reasons of Kinsta offering the latest versions of PHP.