用PHP将Unicode 转化为UTF 8的实现方法(推荐)

实例如下: function unescape($str) { $str = rawurldecode($str); preg_match_all("/(?:%u.{4})|&#x.{4};|&#\d+;|.+/U",$str,$r); $ar = $r[0]; //print_r($ar); foreach($ar as $k=>$v) { if(substr($v,0,2) == "%u"){ $ar[$k] = iconv("UCS-2BE","UTF-8",pack("H4",substr($v,-4))); } elseif(sub