Constants Can Be Impossible

no-email (Damien Seguy), Damien Seguy
Tue, 03 Oct 2023 00:00:00 +0000

In this code, the constant ``x2::F`` is not possible, because adding a string and an array will result in Fatal error.
Yet, this will be determined at execution time, and only if the constant is being used.
Since this constant is never used, its code is never executed, and it doesn't yield any error. PHP has optimized the error away.