RE: [PHP] sorting multi-dimensional array

This would work (and might still if I changed things), but the part that calls it is in another function also. Steve At 02:35 PM 2/20/2003 +0000, you wrote:

-----Original Message----- From: Steve Buehler [mailto:steve@vespro.com] Sent: 20 February 2003 05:25 Ahhh....finally did it with usort. Thanks to those who gave me that answer. Now here is a question for that. I would like to re-use my "cmp" function without having to rewrite it each time. Can it be written so that instead of "divname" being hard coded, that I can pass the sort field in the usort call. That way, I can either sort by "divname" and do another sort by "divid" for seperate results without having to have multiple "cmp" type functions. I hope that made since. Lack of sleep isn't good when programming. Below is my sorting code. function cmp ($a, $b) {

     return strcmp($a["divname"], $b["divname"]);

} usort($array, "cmp"); Well, the only obvious way I can think of is to use a global variable to set the array index you want to sort by -- something like: function cmp ($a, $b) {

      global $field;

      return strcmp($a[$field], $b[$field]);

} $field = "divname"; usort($array, "cmp"); $field = "divid"; usort($array, "cmp"); I haven't tested this, but I think it should work...! Cheers! Mike --------------------------------------------------------------------- Mike Ford, Electronic Information Services Adviser, Learning Support Services, Learning & Information Services, JG125, James Graham Building, Leeds Metropolitan University, Beckett Park, LEEDS, LS6 3QS, United Kingdom Email: m.ford@lmu.ac.uk

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