RE: array_unique & multi-dimensional arrays

array_unique tests the values of each element of the top level array - which are all 'array' - hence you only get one element left the way I'd do this is ... $archive_nav["$year/$month"] = array(month => $month, year => $year, longmonth => $longmonth); this will prevent duplicate combinations of month and year (and, incidentally, allow you to sort on year and month very easily). Tim Ward www.chessish.com > -----Original Message----- > From: sasha [mailto:spam@bittersweet2.com] > Sent: 19 August 2002 19:10 > To: php-general@lists.php.net > Subject: array_unique & multi-dimensional arrays > > > I am trying to clean up some junky code in a journal/news type > script and redoing the archive navigation. I am pulling all of > the dates of the entries and pushing it into a multi- > dimensional array like so: > > array_push($archive_nav, array(month => $month, year => $year, > longmonth => $longmonth)); > > I assumed I could just use array_unique to filter out all of > the duplicates in the array. But it doesn't seem to work that > way, and the only month/year combo I end up with is the very > oldest one (according to year/month) in the array. > > $archive_nav = array_unique($archive_nav); > > If I leave out array_unique, I am getting all of the > appropriate month/year combos in my script while doing a > foreach... just one for every single entry in the database for > that combo (which is a lot in some cases!). > > Is there a better way to do this? > > sasha > > >