In all the countless hours I've spent with php, I've maybe used three or four of these sorting functions. I really had no idea that there is a total of eleven functions used for sorting arrays. Anyway, I'm betting that it may be useful to have these memorized before I take the Zend PHP Certification Exam so here is a brief overview of each one.

He talks about the various flags that can be used in the sorting (for regular, numeric, string and locale-based string handling) and the parameters to call for normal sorting, "natural" sorting, reverse key sorting and others. You can find specifics on these array sorting methods in the PHP manual.

From my experience, one key to a successful online community is the sort of magic that happens between community members that keeps it vibrant and growing. You can't force that kind of magic, and you can't clone it. It just happens.

She points out just a few of the resources you and your groups can use to help get others involved including wikis, mailing lists, IRC channels (I hear Freenode is nice) and twitter. She also gives specific examples of PHP-related community resources she's involved in like the PHPBuilder.com forums, her local PHP user group and the PHPWomen group.

What makes a community tick? [...] I'm no psychologist, but I can offer up a few words of advice for those struggling to grow their community or find that magic. Lay all your cards out on the table and see which ones gather momentum. [...] Let the group grow naturally and remember the complexity of the group dynamics is what dictates how the group will gel, not the leader.