Discussion on the PHP mail lists and IRC channels in the past few days has been looking positive about an alpha release of PHP 5.4 soon. This will be taken from the "trunk" branch of PHP. The exact feature list is under discussion but the mood seems to be "ship what we currently have" though a couple of features are slated to be deferred until later.
A paragraph from a post by Rasmus Lerdorf on PHP's "internals" mail list is worth re-broadcasting. Rasmus is more than willing to grant PHP karma to encourage contributions:
And if you can't figure out how to fix a test, post the
details here. I'd love to point some of the obvious talents and
energy of this list towards the code. If you don't have an svn account
for committing your fixed test, go to href="http://www.php.net/svn-php.php"
>http://www.php.net/svn-php.php and fill in the little form at the
bottom there and put in the test that you fixed and a 1-liner about
how you fixed it and I will set you up with an account right
away. Info on how to check out the code from svn is here: href="https://wiki.php.net/vcs/svnfaq"
So, you can easily become a contributor to PHP, which would look great on your resume.
To discuss test issues you can subscribe to the PHP internals and QA mail lists at http://php.net/mailing-lists.php