自动检测内容中的编码并进行转换的函数

<?php
//---示例
$url = “http://www.163.com”;
$data = file_get_contents($url);
$data = my_encoding($data,”utf-8″);
echo “$data”;

//--函数
function my_encoding($data,$to)
{
$encode_arr = array(‘UTF-8′,’ASCII’,'GBK’,'GB2312′,’BIG5′,’JIS’,'eucjp-win’,’sjis-win’,'EUC-JP’);
$encoded = mb_detect_encoding($data, $encode_arr);
$data = mb_convert_encoding($data,$to,$encoded);
return $data;
}

?>