What is PHP7?

PHP 7 is a major version update of the PHP scripting language. It introduced significant performance improvements over previous versions (PHP 5.x), reduced memory consumption, and included new features such as scalar type declarations, return type declarations, the null coalescing operator, and anonymous classes. PHP is widely used for server-side web development, creating dynamic websites, web applications, and e-commerce platforms. It is often used in conjunction with databases like MySQL and frameworks like Laravel and Symfony.