怎么将中文字符串分割成单个字符

【求助】 如何将中文字符串分割成单个字符

PHP code

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

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PHP code

<a style="color:#f60; text-decoration:underline;" title="php" href="https://www.php.cn/zt/15714.html" target="_blank">php</a>
/****************************
 * subCNchar() 截取汉字 *
 * [$str]     [要截取的字符串]
 * [$start]   [截取的起始位置]
 * [$length]  [要截取的长度]
 * [$charset] [字符串编码]
 ****************************/
function subCNchar($str, $start = 0, $length, $charset = "utf-8") {
    if (strlen($str) 
<br><font color="#e78608">------解决方案--------------------</font><br>

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PHP code

大
中
华
区
[User:root Time:19:21:36 Path:/home/liangdong/php]$ cat mb.php 
<?php /* file-encoding : utf-8*/
/* export LANG=zh_CN.utf-8*/

$str = "大中华区";
$len = mb_strlen($str, "utf-8");
for ($i = 0; $i != $len; ++ $i) {
        $letter = mb_substr($str, $i, 1, "utf-8");
        echo $letter . PHP_EOL;
}
?><br><font color="#e78608">------解决方案--------------------</font><br>

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PHP code

 $county="大中华区";
$array=str_split($county,2);
<br><font color="#e78608">------解决方案--------------------</font><br>

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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"
}