php数组中包含中文的排序方法

function utf8_array_asort(&$array) {
if(!isset($array) || !is_array($array)) {
  return false;
}
foreach($array as $k=>$v) {
  $array[$k] = iconv('UTF-8', 'GB2312',$v);
}
asort($array);
foreach($array as $k=>$v) {
  $array[$k] = iconv('GB2312', 'UTF-8', $v);
}
return true;
}

$abc = array('a'=>'猜', 'b'=>'我','c'=>'哦','d'=>'棍','e'=>'f','f'=>'爸','z'=>'州');
utf8_array_asort($abc);
print_r($abc);

private function utf8_array_asort(&$array) {
  if(!isset($array) || !is_array($array)) {
   return false;
  }
  foreach($array as $k=>$v) {
   $array[$k] = iconv('UTF-8', 'GBK//IGNORE',$v);
  }
  asort($array);
  foreach($array as $k=>$v) {
   $array[$k] = iconv('GBK', 'UTF-8//IGNORE', $v);
  }
  return true;
}