php 判断网页是否是utf8编码的方法

php 判断网页是否是utf8编码的方法

//判断编码

.代码如下:

$encode = mb_detect_encoding($q, array('GB2312','GBK','UTF-8'));

echo $encode."

";

if($encode=="GB2312")

{

$q = iconv("GBK","UTF-8",$q);

}

else if($encode=="GBK")

{

$q = iconv("GBK","UTF-8",$q);

}

else if($encode=="EUC-CN")

{

$q = iconv("GBK","UTF-8",$q);

}

else//CP936

{

//$q = iconv("GB2312","UTF-8",$q);

}

其实就是利用了mb_detect_encoding函数,如果不是utf8编码就转换为utf8编码,防止出现乱码等情况。