复制代码 代码如下:
function utf8_substr($str,$len)
{
for($i=0;$i {
$temp_str=substr($str,0,1);
if(ord($temp_str) > 127){
$i++;
if($i $new_str[]=substr($str,0,3);
$str=substr($str,3);
}
}else {
$new_str[]=substr($str,0,1);
$str=substr($str,1);
}
}
return join($new_str);
}
![[Web front-end] Permulaan pantas Node.js](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
