Over on phpFreaks.com, they've been gathering a list of sorts - of the outcasts and differences from PHP

They have four new articles posted on different topics, but they all are pretty similar. They include: Available functions in PHP4, Functions in PHP4 without documentation, Aliases in PHP4 without documentation, and, last but not least, Functions in PHP 4 but not in PHP 3. They're all pointers to some Zend pages that contain the actual content, but the point is made clearly. There's still some parts of PHP that aren't documented and/or are still relatively new.

For all of the power that our favorite language has, we still need to keep up the documentation for it all. There is a great team of people that can always use some help with this, so if you're interested, get over and hook up with a CVS account to write some documentation for some of these lonely functions.