We see many users with charset problems since PHP-5.6. Generally speaking, problems arises when customers deploys old sites with a charset such as ISO-8859-1. Indeed, since PHP5.6, the default charset is set to UTF-8.
Even if not recommended, we could set the default charset value to an empty string in the php.ini/pool conffiles (like in older PHP versions). What do you think about this?
NOTE: Don't ask us to add a field in the PHP editor. That is already planned for the version 2.0.0. Here, we talk about serie 1.2.x.