TYPO3 Core

Variables can be incremented in pre style (+$i) or post style ($i+).

If the result of the operation is not assigned to a variable or otherwise directly used, pre should be used instead of post.

This is due to the fact that (under the hood) an extra variable assignment is taking place on post increment.

Yes it's a nano-opimization.

But I would like to see it used throughout the core as a 'best practice'.

Regex to find them: /[^=]\s*\$[a-zA-Z0-9]*(\+\+|\-\-)\s*;/