php 判断网页是否是utf8编码的方法
$encode=mb_detect_encoding($q,array('GB2312','GBK','UTF-8')); echo$encode."<br/>"; if($encode=="GB2312") { $q=iconv("GBK","UTF-8",$q); } elseif($encode=="GBK") { $q=iconv("GBK","UTF-8",$q); } elseif($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。