Call it this way…
array_sort($array,'index1','index2',etc.);
You can place a ! in front of the index name (e.g., !index1) to indicate a reverse sort.
Ensure these two functions are available in the source or associated includes:
function array_sort_func($a,$b=NULL) {
static $keys;
if($b===NULL) return $keys=$a;
foreach($keys as $k) {
if(@$k[0]=='!') {
$k=substr($k,1);
if(@$a[$k]!==@$b[$k]) {
return strcmp(@$b[$k],@$a[$k]);
}
}
else if(@$a[$k]!==@$b[$k]) {
return strcmp(@$a[$k],@$b[$k]);
}
}
return 0;
}
function array_sort(&$array) {
if(!$array) return $keys;
$keys=func_get_args();
array_shift($keys);
array_sort_func($keys);
usort($array,"array_sort_func");
}