Re: 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

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