problem med att sortera en array

function mu_sort($array, $key_sort) {

   $key_sorta = explode(",", $key_sort);

   $keys = array_keys($array[0]);

     for($m=0; $m < count($key_sorta); $m++){ $nkeys[$m] = trim($key_sorta[$m]); }

   $n += count($key_sorta);

     for($i=0; $i < count($keys); $i++){

         if(!in_array($keys[$i], $key_sorta)){

             $nkeys[$n] = $keys[$i];

             $n += "1";

           }

     }

     for($u=0;$u<count($array); $u++){ 

         $arr = $array[$u];

           for($s=0; $s<count($nkeys); $s++){

               $k = $nkeys[$s];
            
                 $output[$u][$k] = $array[$u][$k];

           } 

     } 

   sort($output);

 return $output;

}

$array[0]['name'] = "typ2";
$array[0]['type'] = 2;

$array[1]['name'] = "typ1";
$array[1]['type'] = 1;

$array[2]['name'] = "typ3";
$array[2]['type'] = 3;

$sorted = mu_sort($array, "type");

print_r($sorted);

Annars tycker jag det bör funka med usort():

function cmp($a, $b) {

   if ($a['type'] == $b['type']) {
      return 0;
   }
   
   return $a['type'] < $b['type'] ? -1 : 1;

}

usort($array, 'cmp');

du menar

function cmp($a, $b)
{
   return strcmp($a['type'], $b['type']);
}

$array[0]['name'] = "typ2";
$array[0]['type'] = 2;

$array[1]['name'] = "typ1";
$array[1]['type'] = 1;

$array[2]['name'] = "typ3";
$array[2]['type'] = 3;

usort($array, "cmp");

Nej, jag menar:

function cmp($a, $b) {

   if ($a['type'] == $b['type']) {
      return 0;
   }
   
   return $a['type'] < $b['type'] ? -1 : 1;

}

$array[0]['name'] = "typ2";
$array[0]['type'] = 2;

$array[1]['name'] = "typ1";
$array[1]['type'] = 1;

$array[2]['name'] = "typ3";
$array[2]['type'] = 3;

usort($array, "cmp");

Då kan du även sortera numeriska värden. Med strcmp kommer 2 att vara större än 12.

jahååå =)