RE: [PHP] Need some help with array sorting

Thanks Timo I looked at those examples in the manual (I always rtfm as much as possible before I ask :-), but my poor brain couldn't quite make sense of what the user defined function was sposed to do and which one of the usersorts was going to do what I needed - your example has given me the right clues to get me going - ta muchly. -Will > -----Original Message----- > From: timo stamm [mailto:t.stamm@macnews.de] > Sent: 14 September 2002 03:14 PM > To: php-general@lists.php.net > Cc: timo stamm > Subject: Re: [PHP] Need some help with array sorting > > > Hi Will, > > > After completing an example for you, I had a glance at the php > manual and saw that there already are perfect examples and > descriptions! > I can't explain any better. At least I won't for free. Anyhow, > here is what I wrote: > > > <?PHP > // define multidim array > $blocks[0] = array("param1"=>"4","param2"=>"some other > > param"); $blocks[1] = > array("param1"=>"3","param2"=>"some > other param"); $blocks[2] = > array("param1"=>"6","param2"=>"some other > param"); > > echo ("order of blocks/param1 <i>before</i> custom > sort:<br>"); for($i=0;$i<count($blocks);$i++){ > echo($blocks[$i]['param1'] ."<br>"); > } > > // define custom sort function: > function customsort($a, $b) { > if ($a['param1'] == $b['param1']) return 0; > return ($a['param1'] > $b['param1']) ? 1 : -1; > } > // sort customized > usort($blocks, "customsort"); > > echo ("order of blocks/param1 <i>after</i> custom > sort:<br>"); for($i=0;$i<count($blocks);$i++){ > echo($blocks[$i]['param1'] ."<br>"); > } > ?> > > > Timo > > > Am Freitag den, 13. September 2002, um 10:07, schrieb Will Steffen: > > > Thanks Timo > > > > I figured if it was do-able it would be something like uasort, > > or uksort > > or one of those, but my geek muscles arent quite up to that > > sort of flex > > yet - any one mind giving me some clues as to how to get > started using > > these functions - the manual gets pretty vague in this area? > > > > > > Thanks > > Will > > > >> -----Original Message----- > >> From: t.stamm@web.de [mailto:t.stamm@web.de] > >> Sent: 13 September 2002 08:41 AM > >> To: php-general@lists.php.net > >> Cc: timo stamm; Will Steffen > >> Subject: Re: [PHP] Need some help with array sorting > >> > >> > >> Hi Will, > >> > >> > >> You need a customized sort. Have a look at uasort(). > >> > >> > >> Timo > >> > >> > >> Am Donnerstag den, 12. September 2002, um 13:32, schrieb Will > >> Steffen: > >> > >>> Ahem *tap* *tap* is this thing on? > >>> > >>> Hi everyone, my name is Will and I've been addicted to php for 3 > >>> months and 21 days... *grin* > >>> > >>> I'm hitting a bit of a brick wall in a current project - > >> the answer is > >>> probably quite simple, but I'm still newish to php and coding in > >>> general so bear with me: > >>> > >>> I have a multidim array which looks something like : > >>> > >>> $blocks[0] = > >>> array("param1"=>"4","param2"=>"some other param") > >>> $blocks[1] = > >>> array("param1"=>"3","param2"=>"some other param") > >>> $blocks[2] = > >>> array("param1"=>"6","param2"=>"some other param") > >>> > >>> And so forth > >>> > >>> Fairly straight forward you say, my problem is that > elements can be > >>> inserted into the blocks array in no particular order and > I need to > >>> sort at the top level using the values in param1 - so my > >> output should > >>> be: > >>> > >>> $sorted_blocks[0] = > >>> array("param1"=>"3","param2"=>"some > >> other param") > >>> $sorted_blocks[1] = > >>> array("param1"=>"4","param2"=>"some > >> other param") > >>> $sorted_blocks[2] = > >>> array("param1"=>"6","param2"=>"some > >> other param") > >>> > >>> I've had a long hard look at the manual and all those > obscure array > >>> manipulation goodies (ksort, multisort, etc) and done some > >> hunting on > >>> phpbuilder and the like, but turned up zip - either I'm not > >>> understanding the array functions properly, or this can't > >> be done, or > >>> there's a nifty trick for doing it which I havent figured out? > >>> > >>> Ideally I'd like to be populating blocks using an sql query > >> so I could > >>> do an order by or some such upfront, but this world is > anything but > >>> ideal. > >>> > >>> Any1 got 2c for me? > >>> > >>> > >>> Thanks in advance > >>> Will > >>> > >>> > >>> > >>> > >>> -- > >>> PHP General Mailing List (http://www.php.net/) > >>> To unsubscribe, visit: > >>> http://www.php.net/unsub.php > >>> > >> > >> > > > > > > -- > > PHP General Mailing List (http://www.php.net/) > > To unsubscribe, visit: http://www.php.net/unsub.php > > > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > >