It would seem by it's title and description, that this forum section is for the posting of suggestions regarding these forums, rather than suggestions for such things as Requested or suggested new features for PHP itself. So, I am suggesting/requesting a forum solely for posting suggestions or requests for new PHP functionality, features or member contributed snippets of usefull defined functions.
If such a place already exists, then I appologize for for wasting your time, but could not find it on my own.
Mysterie
Suggestion for a new forum section (possibly)
Moderator: General Moderators
If its just about discussion then I guess you can use the "General" forum, but if you are talking about actual feature requests then you will need to join the/a PHP mailing list and submit it there:
http://www.php.net/mailing-lists.php
http://www.php.net/mailing-lists.php