
<?php
function reverse($str) {
$ret = "";
len=mb s trwidth( len=mbstrwidth(len = mb_strwidth(str,"GB2312");
for (i=0; i=0;i=0; i< len; len;len; i++) {
arr[]=mb s ubstr( arr[]=mbsubstr(arr[] = mb_substr(str, $i, 1, "GB2312");
}
return implode("", array_reverse($arr));
}
print_r(reverse("字符串翻转"));


