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PHP 7.4: most important RFCs

The release date will be probably in December, 2019. But here is some new features that’ll be available in this version and here is the most important RFC (Request for comments)

Typed Properties in Class

In this version we can type variables in a Class.

Preloading

It’s a major performance improvements. if you’re using a framework today, its files have to be loaded and recompiled on every request. Preloading allows the server to load PHP files in memory on startup, and have them permanently available to all subsequent requests.

Null coalescing assignment operator

Short closures

For those who are familiar with ES6+, Typescript and React JS, the arrow function is now available in PHP. The arrow function let us execute anonymous functions in a map loop.
Example:

Here is all the RFC of PHP 7.4 https://wiki.php.net/rfc#php_74