php-----utf8和gbk相互转换

utf8转换为gbk

';
echo iconv("UTF-8","gbk//TRANSLIT",$str); //将字符串的编码从UTF-8转到GB2312

gbk转换为utf8

';
echo iconv('GB2312', 'UTF-8', $str); //将字符串的编码从GB2312转到UTF-8