Have you had experience working with PHP version 7.4?

PHP 7.4 is one of the versions of the PHP language, released at the end of 2019. It introduced several important improvements and new features, such as:

• Typed properties — the ability to specify types for class properties.
• Arrow functions — a shorter syntax for anonymous functions.
• Null coalescing assignment operator (??=) — a convenient operator for assigning a value if the variable is null.
• Performance optimizations and core improvements.

If you have experience working with PHP 7.4, you probably used these features to write cleaner and more efficient code.