Form variables with - in their name

The post on the PHP3 list made me check our handling of form varibles with - in their name. It seems that currently we don't handle them in any special way, and they simply get into our name space. This is unlike our handling of form varibales with . or a space in their name, in which case we convert it to _. My question is whether we should publish this as the documented behavior, in which case it's only possible to access these variables using indirect reference (i.e. using ${"foo-bar"}), or should we make it autoconvert to _ as well. - isn't the only character in question - most other operator characters aren't valid character names in PHP. My personal feeling about this is: 1. We shouldn't change the current behavior, and let people access such variables using indirect reference. 2. For consistency, we should behave in the same way with spaces and dots. Because of the incompatibility implications, I'd make this runtime selectable (using an INI directive). Zeev -- Zeev Suraski <zeev@zend.com> http://www.zend.com/