Question

php下检测字符串是否是utf8编码的代码

Answer 1

PHP用MBString库的函数
$e=mb_detect_encoding($text, array('UTF-8', 'GBK'));
switch($e){
case 'UTF-8' : //如果是utf8编码
break;
case ‘GBK’: //如果是gbk编码
break
}