PHP 把字符串转换为数组支持中文

<meta charset="UTF-8">  
<?php
//将一个字符串转换成数组，支持中文
function strToArray($string) {
    $strlen = mb_strlen($string);
    while ($strlen) {
        $array[] = mb_substr($string, 0, 1, "utf8");
        $string = mb_substr($string, 1, $strlen, "utf8");
        $strlen = mb_strlen($string);
    }
    return $array;
}
$string = '链接：www.onestopweb.cn';
$arr = strToArray($string);
print_r($arr);
?>

效果图：