Hi Lynn, Thank you very much for the input! Then we could add a secondary vote to the RFC where an upgrade path was decided upon.
The first such path is the one proposed by Christoph: Introduce a temporary ini setting with which a "debug" mode of float to string casting could be enabled. That is, when it's turned on and a casting is affected by locale settings then a warning is emitted. This setting would be removed in a (near) future version of PHP. Although PHP 8.1 would be an unusual candidate to do so, but it *might* be possible if we found a good way to warn people from day 0 that it's just a temporary flag? Maybe by an immediate deprecation? Is there any other idea for a sensible upgrade path? Cheers: Máté
