怎么将中文字符串分割成单个字符

 $county="大中华区";
 
 echo "".$ci=iconv_strlen($county,"UTF-8")."";
         for($j=0;$j<$ci;$j++){
            echo  $e.=iconv_substr($county,$j,$j);
 }

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PHP code
大
中
华
区
[User:root Time:19:21:36 Path:/home/liangdong/php]$ cat mb.php 


------解决方案--------------------
PHP code


 $county="大中华区";
$array=str_split($county,2);

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PHP code


 $county="大中华区";
$array=str_split($county,2);




array(4) {
  [0] =>
  string(2) "大"
  [1] =>
  string(2) "中"
  [2] =>
  string(2) "华"
  [3] =>
  string(2) "区"
}